CN103400587B - The method of data write and mechanical hard disk - Google Patents

The method of data write and mechanical hard disk Download PDF

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Publication number
CN103400587B
CN103400587B CN201310270612.8A CN201310270612A CN103400587B CN 103400587 B CN103400587 B CN 103400587B CN 201310270612 A CN201310270612 A CN 201310270612A CN 103400587 B CN103400587 B CN 103400587B
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magnetic
data
write
lba
magnetic track
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CN103400587A (en
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杨天文
王均
毕德春
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The invention discloses method and the mechanical hard disk of a kind of data write, M data write magnetic track is determined from M magnetic disc face, wherein, the addressing mode of the LBA being positioned at the magnetic track of same cylinder in described M magnetic disc face addresses for intersecting, and M is the integer not less than 2；Being written in parallel to described M data write magnetic track by writing the data of described mechanical hard disk according to the order of described LBA, wherein, described M data write magnetic track and are positioned at same cylinder, and be described data be originally written into magnetic track.

Description

The method of data write and mechanical hard disk
Technical field
The present invention relates to field of data storage, be specifically related to method and the mechanical hard disk of the write of a kind of data.
Background technology
The storage medium of existing mechanical hard disk is made up of multiple magnetic discs (disk), as it is shown in figure 1, this mechanical hard disk comprises First magnetic disc the 14, second magnetic disc 13 and the 3rd magnetic disc 12, wherein, each magnetic disc in first, second, and third magnetic disc all has Have on 2 magnetic disc faces, and each magnetic disc face to divide and have multiple magnetic track, and each magnetic track is divided into multiple sector, data Being stored on the plurality of magnetic track, such as, the first magnetic disc 14 includes the first magnetic disc face 15 and the second magnetic disc face 16, the first magnetic disc face 15 and second all divide on magnetic disc face 16 and have 255 magnetic tracks, and each magnetic track is divided in 17 sectors, and the first magnetic disc face 15 I-th magnetic track and the second magnetic disc face 16 on i-th magnetic track formed a cylinder, the value of described i is 0-255.
Wherein, first, second, and third magnetic disc is arranged in rotating shaft 16, carries out high-speed rotary by motor-driven rotatable shaft 16 Turn, to drive first, second, and third magnetic disc to be also carried out high speed rotating, so that multiple magnetic head 17 can write data into the One, second and the 3rd magnetic disc, it is also possible to make multiple magnetic head 17 read data from first, second, and third magnetic disc.
It addition, the quantity of multiple magnetic heads 17 is identical with the quantity in the magnetic disc face of mechanical hard disk, and every in multiple magnetic head 17 One magnetic head is all connected with head arm 10 by a head hold 11, owing to first, second, and third magnetic disc has 6 magnetic discs Face so that multiple magnetic heads 17 include 6 magnetic heads, the corresponding magnetic disc face of each magnetic head, the most multiple magnetic heads 17 In magnetic head 19 for reading and writing data from the first magnetic disc face 15.
But, existing mechanical hard disk, when carrying out data write or reading, in any one moment, can only have a magnetic Head carries out write operation or read operation, and magnetic head is driven by frame for movement, causes existing mechanical hard disk The speed of write data is low.
Summary of the invention
The embodiment of the present application is by providing method and the mechanical hard disk of the write of a kind of data.
According to the first aspect of the invention, it is provided that the method for a kind of data write, from M magnetic disc face, M number is determined According to write magnetic track, wherein, described M magnetic disc face is positioned at the addressing mode of LBA of the magnetic track of same cylinder for intersecting Addressing, M is the integer not less than 2；Carry out described head arm seeking for the first time by being used for the voice coil motor driving head arm, Described head arm is connected with M magnetic head；Second time is carried out by the micro machine being arranged on each magnetic head in described M magnetic head Tracking, positions described M magnetic head respectively to described M data write magnetic track；By write described mechanical hard disk data according to The order of described LBA is written in parallel to described M data write magnetic track, and wherein, described M data write magnetic track is positioned at Same cylinder, and for described data be originally written into magnetic track.
In conjunction with first aspect, in the implementation that the first is possible, the relative error in described M magnetic disc face is less than threshold Value.
In conjunction with first aspect or implementation that the first is possible, in the implementation that the second is possible, when M=2, Described M magnetic disc face is positioned on same disk.
In conjunction with the implementation that the second of first aspect is possible, in the implementation that the third is possible, described M magnetic The addressing mode of the LBA being positioned at the magnetic track of same cylinder in dish face addresses for intersecting, and specifically includes: be positioned at same post The addressing mode of the LBA of the magnetic track in face is for carrying out intersecting addressing in units of a LBA.
In conjunction with the implementation that the second of first aspect is possible, in the 4th kind of possible implementation, state M magnetic disc The addressing mode of the LBA being positioned at the magnetic track of same cylinder in face addresses for intersecting, and specifically includes: be positioned at same cylinder Magnetic track LBA addressing mode for M/mono-LBA be unit carry out intersect addressing.
In conjunction with first aspect or the first is to any one in the 4th kind of possible implementation, the 5th kind of possible reality In existing mode, the described data by the described mechanical hard disk of write are written in parallel to described M according to the order of described LBA Data write magnetic track, specifically includes: by the number of mechanical hard disk described in the data of mechanical hard disk described in said write and said write According to verification data be written in parallel to described M data write magnetic track according to the order of described LBA.
According to second aspect, it is provided that a kind of mechanical hard disk, described mechanical hard disk includes: the first magnetic track determines unit, uses In determining M data write magnetic track from M magnetic disc face, wherein, described M magnetic disc face is positioned at the patrolling of magnetic track of same cylinder The addressing mode collecting block address addresses for intersecting, and M is the integer not less than 2；First tracking unit, for driving magnetic by being used for Described head arm is carried out seeking for the first time by the voice coil motor of head arm, and described head arm is connected with M magnetic head；Second tracking is single Unit, seeks, by described M magnetic for carrying out second time by the micro machine being arranged on each magnetic head in described M magnetic head Head location respectively is to described M data write magnetic track；Data write unit, determines unit for receiving from described first magnetic track Described M data write magnetic track sent, by the data of the described mechanical hard disk of write according to described LBA order also Row write enters described M data write magnetic track, and wherein, described M data write magnetic track is positioned at same cylinder, and is described data Be originally written into magnetic track.
In conjunction with second aspect, in the implementation that the first is possible, described first magnetic track determines unit, specifically for control Make the relative error in described M magnetic disc face less than threshold value.
In conjunction with second aspect or implementation that the first is possible, in the implementation that the second is possible, described first Magnetic track determines unit, specifically for when M=2, controls described M magnetic disc face and is positioned on same disk.
In conjunction with the implementation that the second of second aspect is possible, in the implementation that the third is possible, described first Magnetic track determines unit, specifically for controlling to be positioned in described M magnetic disc face the addressing of the LBA of the magnetic track of same cylinder Mode carries out intersection addressing in units of a LBA.
In conjunction with the implementation that the second of second aspect is possible, in the 4th kind of possible implementation, described first Magnetic track determines unit, specifically for controlling to be positioned in described M magnetic disc face the addressing of the LBA of the magnetic track of same cylinder Mode is that unit carries out intersection addressing with M/mono-LBA.
In conjunction with second aspect or the first is to any one in the 4th kind of possible implementation, the 5th kind of possible reality In existing mode, described data write unit, specifically for by described in the data of mechanical hard disk described in said write and said write The verification data of the data of mechanical hard disk are written in parallel to described M data write magnetic track according to the order of described LBA.
According to the third aspect, it is provided that a kind of mechanical hard disk, described mechanical hard disk includes: memorizer, is used for caching write The data of described mechanical hard disk；Controller, is used for: determine M data write magnetic track, wherein, described M from M magnetic disc face The addressing mode of the LBA being positioned at the magnetic track of same cylinder in magnetic disc face addresses for intersecting, and M is the integer not less than 2； Carry out described head arm seeking for the first time by being used for the voice coil motor driving head arm, described head arm and M magnetic head phase Even；Carry out second time by the micro machine being arranged on each magnetic head in described M magnetic head to seek, described M magnetic head is divided Ding Wei be to described M data write magnetic track；By the data of mechanical hard disk described in said write according to described LBA Order is written in parallel to described M data write magnetic track, and wherein, described M data write magnetic track and are positioned at same cylinder, and for institute That states data is originally written into magnetic track.
In conjunction with the third aspect, in the implementation that the first is possible, described controller, specifically for controlling described M The relative error in magnetic disc face is less than threshold value.
In conjunction with the third aspect or implementation that the first is possible, in the implementation that the second is possible, described control Device, specifically for when M=2, controls described M magnetic disc face and is positioned on same disk.
In conjunction with the implementation that the second of the third aspect is possible, in the implementation that the third is possible, described control Device, specifically for controlling to be positioned at the addressing mode of the LBA of the magnetic track of same cylinder in described M magnetic disc face with one LBA is that unit carries out intersection addressing.
In conjunction with the implementation that the second of the third aspect is possible, in the 4th kind of possible implementation, described control Device, specifically for control the addressing mode being positioned at the LBA of the magnetic track of same cylinder in described M magnetic disc face with M/ One LBA is that unit carries out intersection addressing.
In conjunction with second aspect or the first is to any one in the 4th kind of possible implementation, the 5th kind of possible reality In existing mode, described controller, specifically for by hard for machinery described in the data of mechanical hard disk described in said write and said write The verification data of the data of dish are written in parallel to described M data write magnetic track according to the order of described LBA.
According to fourth aspect, it is provided that a kind of method of digital independent, being applied to mechanical hard disk, described method includes: from N Individual magnetic disc face determines N number of digital independent magnetic track, and determines the logical block of the magnetic track being positioned at same cylinder in described N number of magnetic disc face The intersection addressing mode of address, N is the integer not less than 2；
The N number of data of parallel reading from described N number of digital independent magnetic track, it is thus achieved that by described N number of data according to described logic The reading data of the sequential combination of block address, wherein, described N number of digital independent magnetic track is positioned at same cylinder, and for institute State the initial read magnetic track of N number of data.
In conjunction with fourth aspect, in the implementation that the first is possible, the relative error in described N number of magnetic disc face is less than threshold Value.
In conjunction with fourth aspect or implementation that the first is possible, in the implementation that the second is possible, when N=2, Described N number of magnetic disc face is positioned on same disk.
In conjunction with the implementation that the second of fourth aspect is possible, in the implementation that the third is possible, described determine Described N number of magnetic disc face is positioned at the intersection addressing mode of the LBA of the magnetic track of same cylinder, specifically includes:
Determine LBA that described intersection addressing mode is the magnetic track being positioned at same cylinder in described N number of magnetic disc face with One LBA is the mode that unit carries out intersection addressing, or for described N number of magnetic disc face is positioned at the magnetic of same cylinder The LBA in road is in the way of unit carries out intersection addressing by M/mono-LBA.
According to the 5th aspect, it is provided that a kind of mechanical hard disk, described mechanical hard disk includes: the second magnetic track determines unit, uses In determining N number of digital independent magnetic track from N number of magnetic disc face, and determine the magnetic track being positioned at same cylinder in described N number of magnetic disc face The intersection addressing mode of LBA, N is the integer not less than 2；Data-reading unit, for receiving from described second magnetic Road determines described N number of digital independent magnetic track of unit 110 and described intersection addressing mode, from described N number of digital independent magnetic track Parallel read N number of data, it is thus achieved that by described N number of data according to the reading data of the sequential combination of described LBA, Wherein, described N number of digital independent magnetic track is positioned at same cylinder, and is the initial read magnetic track of described N number of data.
In conjunction with the 5th aspect, in the implementation that the first is possible, the relative error in described N number of magnetic disc face is less than threshold Value.
In conjunction with the 5th aspect or implementation that the first is possible, in the implementation that the second is possible, when N=2, Described N number of magnetic disc face is positioned on same disk.
In conjunction with the 5th aspect or first or the possible implementation of the second, in the implementation that the third is possible, institute State the second magnetic track and determine unit, specifically for determining that described intersection addressing mode is to be positioned at same cylinder in described N number of magnetic disc face The LBA of magnetic track in units of a LBA, carry out intersecting the mode of addressing, or described N number of magnetic disc face In be positioned at same cylinder magnetic track LBA with M/mono-LBA be unit carry out intersect addressing side Formula.
According to the 6th aspect, it is provided that a kind of mechanical hard disk, described mechanical hard disk includes: memorizer, is used for storing data； Controller, when determining the reading data needing to read from described memorizer, for determining N number of data from N number of magnetic disc face Reading magnetic track, and determine the intersection addressing mode of the LBA of the magnetic track being positioned at same cylinder in described N number of magnetic disc face, N For the integer not less than 2, and read N number of data for parallel from described N number of digital independent magnetic track, it is thus achieved that by described N number of Data are according to the described reading data of the sequential combination of described LBA, wherein, and described N number of digital independent magnetic track position In same cylinder, and it it is the initial read magnetic track of described N number of data.
In conjunction with the 6th aspect, in the implementation that the first is possible, whether the relative error in described N number of magnetic disc face is less than Threshold value.
In conjunction with the 6th aspect or implementation that the first is possible, in the implementation that the second is possible, when N=2, Described N number of magnetic disc face is positioned on same disk.
In conjunction with the 6th aspect or first or the possible implementation of the second, in the implementation that the third is possible, institute State controller, specifically for after determining described intersection addressing mode, according to described intersection addressing mode, determine described N number of The order of the LBA that data are corresponding, and described N number of data are combined according to the order of described LBA, obtain Obtain described reading data.
The present invention has the beneficial effect that:
In the embodiment of the present invention, after determining M data write magnetic track from M magnetic disc face, due to described M magnetic disc face In be positioned at the addressing mode of LBA of magnetic track of same cylinder for intersecting coding, cause writing described mechanical hard disk Data are also carried out intersecting coding so that the described data writing described mechanical hard disk can suitable according to described LBA Sequence is written in parallel in described M data write magnetic track, it is achieved thereby that be written in parallel to data, and existing mechanical hard disk is same Only have a magnetic head in time period and carry out write operation, and the technical program can have within the same time period multiple magnetic head enter Row write operation such that it is able to be effectively improved the writing speed of mechanical hard disk.
Accompanying drawing explanation
Fig. 1 is the structure chart of mechanical hard disk of the prior art；
Fig. 2 is the method flow diagram of data write in the embodiment of the present invention；
Fig. 3 a is the first structure chart that in the embodiment of the present invention, 2 magnetic disc faces are positioned on same disk；
Fig. 3 b is the second structure chart that in the embodiment of the present invention, 2 magnetic disc faces are positioned on same disk；
Fig. 3 c is that in the embodiment of the present invention, M magnetic disc face is positioned at the first structure chart on different disk；
Fig. 3 d is the second structure chart that in the embodiment of the present invention, M magnetic disc face is positioned at different disk；
Fig. 4 a is the structure chart of the multiple disks in the embodiment of the present invention；
Fig. 4 b is the structure chart of the magnetic track in the embodiment of the present invention on the first magnetic disc face 33；
Fig. 5 a is the structure chart of the first head arm motion in the embodiment of the present invention；
Fig. 5 b is the structure chart of the second head arm motion in the embodiment of the present invention；
Fig. 5 c is the structure chart of mechanical hard disk when being provided with the first buffer in the embodiment of the present invention；
Fig. 6 is the structure chart of the first mechanical hard disk in the embodiment of the present invention；
Fig. 7 is the structure chart of the second mechanical hard disk in the embodiment of the present invention；
Fig. 8 is the structure chart of the third mechanical hard disk in the embodiment of the present invention；
Fig. 9 is the method flow diagram of digital independent in the embodiment of the present invention；
Figure 10 is the data flow figure reading data in the embodiment of the present invention；
Figure 11 is the structure chart of the 4th kind of mechanical hard disk in the embodiment of the present invention；
Figure 12 is the structure chart of the 5th kind of mechanical hard disk in the embodiment of the present invention.
Detailed description of the invention
For the technical problem that writing speed present in prior art is low, the technical side that the embodiment of the present invention proposes In case, being to determine M data write magnetic track from M magnetic disc face, wherein, M is the integer more than 2, due to described M magnetic disc face In be positioned at the addressing mode of LBA of magnetic track of same cylinder for intersecting coding, cause writing described mechanical hard disk Data are also carried out intersecting coding so that the described data writing described mechanical hard disk can suitable according to described LBA Sequence is written in parallel in described M data write magnetic track, it is achieved thereby that be written in parallel to data so that can have in the same time period Multiple magnetic heads carry out write operation such that it is able to be effectively improved the writing speed of mechanical hard disk.
Below in conjunction with each accompanying drawing embodiment of the present invention technical scheme main realized principle, detailed description of the invention and The beneficial effect that should be able to reach is set forth in.
Embodiment one:
The embodiment of the present invention one proposes the method for a kind of data write, is applied to mechanical hard disk, and described mechanical hard disk has There is multiple disk, and each disk has two magnetic disc faces.
As in figure 2 it is shown, the concrete processing procedure of the method is as follows:
Step S201: determine M data write magnetic track from M magnetic disc face, wherein, be positioned at same in described M magnetic disc face The addressing mode of the LBA of the magnetic track of one cylinder is for intersecting addressing, and M is the integer not less than 2；
Step S202: the data writing described mechanical hard disk are written in parallel to described according to the order of described LBA M data write magnetic track, wherein, described M data write magnetic track is positioned at same cylinder, and being originally written into for described data Magnetic track.
Wherein, in step s 201, from M magnetic disc face, M data write magnetic track, wherein, described M magnetic disc face are determined In be positioned at same cylinder magnetic track LBA addressing mode for intersect addressing, M is the integer not less than 2.
In specific implementation process, when getting the data needing to write described mechanical hard disk, need from the plurality of Determining described M data write magnetic track in magnetic disc face, described M data write magnetic track is for storing the initial of described M data Write magnetic track, compiles for intersecting owing to being positioned at the addressing mode of the LBA of the magnetic track of same cylinder in described M magnetic disc face Location so that the described data needing to write described mechanical hard disk are also required to carry out intersecting address equally, and described M data are according to institute State the intersection addressing mode of the logical address of same cylinder magnetic track, be written in parallel to.
Specifically, the relative error in described M magnetic disc face is less than threshold value, and the relative error in described M magnetic disc face is less than During threshold value so that the relative error of the magnetic track at same cylinder in described M magnetic disc face also can be less than threshold value, so that institute State mechanical hard disk when being addressed so that M the magnetic head corresponding with described M data write magnetic track in described mechanical hard disk Location is less to the site error on described M data write magnetic track, and time phase difference is the least, such as in 10 microseconds, and 50 microseconds, Within the time of 100 microseconds.
Wherein, described threshold value can be such as 0.5 millimeter, and 0.8 millimeter and 1.0 millimeters of equivalences, in the value of described threshold value More hour, the site error that described M magnetic head location writes magnetic track to the most described M data is the least, addresses the time the shortest so that institute State mechanical hard disk can carry out faster being written in parallel to operation, improve the writing speed of described mechanical hard disk.
In actual application, after determining described M the magnetic head corresponding with described M data write magnetic track, first First pass through voice coil motor to carry out head arm seeking for the first time, then by being arranged on each magnetic head in described M magnetic head Micro machine carries out second time and seeks, when described threshold value is 0.5 millimeter, by described M magnetic head location to described M data write The addressing time of magnetic track is 10 microseconds, and is 1.0 millimeters in described threshold value, is write to described M data described M magnetic head location The addressing time entering magnetic track is 50 microseconds, and when described threshold value is 0.5 millimeter, described mechanical hard disk can be carried out quickly parallel Write operation, thus improve the writing speed of described mechanical hard disk.
Wherein, when described M=2, described M magnetic disc face may be located on same disk, it is also possible to is positioned at different On disk.
Concrete, described M magnetic disc face is positioned at the addressing mode of LBA of the magnetic track of same cylinder for intersecting Addressing, specifically includes: be positioned at the addressing mode of LBA of the magnetic track of same cylinder for a LBA as list Position carries out intersection addressing.
Wherein, owing in mechanical hard disk, the storage position of data is identified with LBA, such as, one LBA for example, LBA0, LBA1, LBA2 that 1M data are corresponding, until LBA11.
The addressing mode of the LBA being positioned at the magnetic track of same cylinder in magnetic disc face addresses for intersecting, and is being embodied as During, described M magnetic disc face is positioned at the addressing mode of LBA of the magnetic track of same cylinder for intersecting addressing, specifically Including: it is positioned at the addressing mode of LBA of the magnetic track of same cylinder for being that unit is entered with M/mono-LBA Row intersection addressing.
The addressing mode of the LBA being positioned at the magnetic track of same cylinder in described M magnetic disc face addresses for intersecting, tool Body includes: be positioned at the addressing mode of LBA of the magnetic track of same cylinder for hand in units of a LBA Fork addressing, such as, LBA0, LBA1, LBA2, until LBA11 is positioned at same cylinder, and adjacent LBA address is positioned at same Physical sector.Specifically, when described M=2, as shown in Figure 3 a, LBA0, LBA1 are until LBA11 is positioned at same magnetic The same magnetic track in two magnetic disc faces of dish, and in units of a LBA, carry out intersection addressing.Therefore, by 1M data Write LBA LBA0 to LBA11, to the data write by the magnetic head of magnetic disc face A, i.e. write LBA LBA0, The data of LBA2, LBA4, LBA6, LBA8 and LBA10, are respectively written into the LBA of correspondence by the magnetic head of magnetic disc face A；Write Entering the data of LBA LBA1, LBA3, LBA5, LBA7, LBA9 and LBA11, it is right to be respectively written into by the magnetic head of magnetic disc face B The LBA answered, by being written in parallel to of the magnetic head of magnetic disc face A and magnetic disc face B, therefore, as M=2, data write speed Degree is 2 times of single magnetic head.
Described M magnetic disc face is positioned at the addressing mode of LBA of the magnetic track of same cylinder for M/mono- LBA is that unit carries out intersection addressing, such as, LBA0, LBA1, LBA2, until LBA11 is positioned at same cylinder, and Adjacent LBA address is positioned at Same Physical physical sector.Specifically, when described M=2, as shown in Figure 3 b, for expression side Just, only by LBA0, LBA1 as a example by the Address d istribution of LBA5, LBA0, LBA1 are until LBA5 is positioned at the two of same magnetic disc The same magnetic track in individual magnetic disc face, and be that unit carries out intersection addressing with 1/2nd LBAs.As shown in Figure 3 b, by 1M Data write LBA LBA0 to LBA11, due to the LBA shown in Fig. 3 b with 1/2nd LBA Carry out intersecting for unit, i.e. front 1/2nd of LBA LBA0 are positioned at magnetic disc face A, i.e. LBA0-1, and logical block ground Rear 1/2nd of location LBA0 are positioned at magnetic disc face B, i.e. LBA0-2, and in like manner, LBA LBA1 depends on to LBA LBA11 This principle addresses.1M data are write LBA LBA0 to LBA11, to the number write by the magnetic head of magnetic disc face A According to, i.e. write LBA LBA0-1, LBA1-1, LBA2-1, LBA3-1, LBA4-1, LBA5-1, LBA6-1, LBA7-1, The data of LBA8-1, LBA9-1, LBA10-1 and LBA11-1, are respectively written into the logical block ground of correspondence by the magnetic head of magnetic disc face A Location；Write LBA LBA0-2, LBA1-2, LBA2-2, LBA3-2, LBA4-2, LBA5-2, LBA6-2, LBA7-2, The data of LBA8-2, LBA9-2, LBA10-2 and LBA11-2, are respectively written into the logical block ground of correspondence by the magnetic head of magnetic disc face B Location.Therefore, as M=2, writing speed is 2 times of single magnetic head.
During above-mentioned M=2, two magnetic tracks being positioned at same cylinder may be located on two magnetic disc faces of identical magnetic disc, it is possible to To be positioned on two magnetic disc faces of different magnetic disc.This is not construed as limiting by the embodiment of the present invention.
Such as, when M=3, described 3 magnetic disc faces are positioned at the addressing mode of the LBA of the magnetic track of same cylinder For intersecting addressing, addressing unit of intersecting is a LBA, as shown in Figure 3 c, equally with 1M data instance, by 1M data Write LBA LBA0 to LBA11, to the data write by the magnetic head of magnetic disc face A, i.e. write LBA LBA0, The data of LBA3, LBA6 and LBA9, are respectively written into the LBA of correspondence by the magnetic head of magnetic disc face A；Write logical block ground The data of location LBA1, LBA4, LBA7 and LBA10, are respectively written into the LBA of correspondence by the magnetic head of magnetic disc face B；Write The data of LBA LBA2, LBA5, LBA8 and LBA11, are respectively written into the logical block ground of correspondence by the magnetic head of magnetic disc face C Location, by being written in parallel to of the magnetic head of magnetic disc face A, magnetic disc face B and magnetic disc face C, writing speed is 3 times of single magnetic head.
One of which embodiment, the data in LBA0, LBA1 and LBA2 are written in parallel to by magnetic head A, B and C respectively simultaneously, Further, the data of one of them LBA are verification data；Data in LBA3, LBA4 and LBA5 respectively by magnetic head A, B and C is written in parallel to simultaneously, and, the data of one of them LBA are verification data；In LBA6, LBA7 and LBA8 Data are written in parallel to by magnetic head A, B and C respectively simultaneously, and, the data of one of them LBA are verification data； Data in LBA9, LBA10 and LBA11 are written in parallel to by magnetic head A, B and C respectively simultaneously, and, one of them logical block ground The data of location are verification data, thus add the reliability of write data.The speed that 1M data 3 magnetic heads of use are written in parallel to Degree is 3 times of single magnetic head write.Magnetic disc face, shown in Fig. 3 c 3 two can be had to be positioned on same magnetic disc, the present invention This is not construed as limiting.
Equally, when M=4, described 4 magnetic disc faces are positioned at the addressing mode of the LBA of the magnetic track of same cylinder For intersecting addressing, addressing unit of intersecting is a LBA, as shown in Figure 3 d, equally with 1M data instance, by 1M data Write LBA LBA0 to LBA11, to the data write by the magnetic head of magnetic disc face A, i.e. write LBA LBA0, The data of LBA4 and LBA8, are respectively written into the LBA of correspondence by the magnetic head of magnetic disc face A；Write LBA The data of LBA1, LBA5 and LBA9, are respectively written into the LBA of correspondence by the magnetic head of magnetic disc face B；Write logical block ground The data of location LBA2, LBA6 and LBA10, are respectively written into the LBA of correspondence by the magnetic head of magnetic disc face C；Write logical block The data of address LBA3, LBA7 and LBA11, are respectively written into the LBA of correspondence by the magnetic head of magnetic disc face D.Pass through magnetic disc Being written in parallel to of the magnetic head of face A, magnetic disc face B, magnetic disc face C and magnetic disc face D, writing speed is 4 times of single magnetic head.Wherein A kind of embodiment, the data in LBA0, LBA1, LBA2 and LBA3 are write by magnetic head A, B, C and D respectively, and, Qi Zhongyi The data of individual LBA are verification data；Data in LBA4, LBA5, LBA6 and LBA7 are respectively by magnetic head A, B, C and D Write, and, the data of one of them LBA are verification data；Data in LBA8, LBA9, LBA10 and LBA11 are divided Do not write by magnetic head A, B, C and D, and, the data of one of them LBA are verification data, thus add write The reliability of data.It it is 4 times of the write of single magnetic head by the speed that 1M data use 4 magnetic heads to be written in parallel to.Shown in Fig. 3 d 4 Individual magnetic disc face two can be had to be positioned on same magnetic disc, it is also possible to be positioned on different magnetic discs, it is also possible to lay respectively at two On individual magnetic disc, this is not construed as limiting by the present invention.When M=4, described 4 magnetic disc faces are positioned at the logic of the magnetic track of same cylinder The addressing mode of block address is for being that unit carries out intersecting addressing with 1/4th LBAs
Described M magnetic disc face is positioned at the addressing mode of LBA of the magnetic track of same cylinder for M/mono- LBA be unit carry out intersect addressing, specifically, when described M=3, with 1/3rd LBAs unit When carrying out intersection addressing, such as, write data are 1M, and the LBA of data write is LBA0 to LBA11,3 magnetic disc faces Being respectively magnetic disc face A, magnetic disc face B and magnetic disc face C, the most corresponding magnetic head A, magnetic head B and magnetic head C, then the data at magnetic disc face A are write Enter the LBA on magnetic track be distributed as LBA0-1, LBA1-1, LBA2-1, LBA3-1, LBA4-1, LBA5-1, LBA6-1, LBA7-1, LBA8-1, LBA9-1, LBA10-1 and LBA11-1, the LBA distribution on the data write magnetic track of magnetic disc face B For LBA0-2, LBA1-2, LBA2-2, LBA3-2, LBA4-2, LBA5-2, LBA6-2, LBA7-2, LBA8-2, LBA9-2, LBA on the data write magnetic track of LBA10-2 and LBA11-2, magnetic disc face C is distributed as LBA0-3, LBA1-3, LBA2- 3, LBA3-3, LBA4-3, LBA5-3, LBA6-3, LBA7-3, LBA8-3, LBA9-3, LBA10-3 and LBA11-3.Wherein, LBA0-1, LBA0-2 and LBA0-3 represent 1/3rd LBAs of LBA LBA0 respectively, other logical block ground Location is identical with this.By being written in parallel to of the magnetic head of magnetic disc face A, magnetic disc face B and magnetic disc face C, writing speed is single magnetic 3 times of head.
One of which embodiment, magnetic head A, magnetic head B and magnetic head C write to LBA0-1, LBA0-2 and LBA0-3 respectively parallel Entering data, wherein the data of 1/3rd LBAs in LBA0-1, LBA0-2 and LBA0-3 are verification data, from And improve the reliability of write data；In like manner, magnetic head A, magnetic head B and magnetic head C the most parallel to write LBA1-1, LBA1-2 and LBA1-3 writes data, and one of them 1/3rd LBA write is verification data.In this mode, until magnetic head A, magnetic head B and magnetic head C write data to write LBA11-1, LBA11-2 and LBA11-3 the most parallel.By verification data, increase Added data write reliability, simultaneously data write rate be single magnetic head write 3 times.
In specific implementation process, see Fig. 4 a and Fig. 4 b, the first disk the 30, second disk 31 and the 3rd disk 32 are assembled on a motor spindle, and in same level, 0 magnetic track 39 in the first magnetic disc face 33 is apart from described motor spindle The distance in axle center is 125 millimeters, and in same level, motor spindle described in 0 track distances in the second magnetic disc face 34 The distance in axle center is 124 millimeters, and equally, described in 0 track distances in the 3rd magnetic disc face 35, the distance in the axle center of motor spindle is 128 Millimeter, described in 0 track distances in the 4th magnetic disc face 36, the distance in the axle center of motor spindle is 125 millimeters, the 0 of the 5th magnetic disc face 37 The distance in the axle center of motor spindle described in track distances is 129 millimeters, motor spindle described in 0 track distances in the 6th magnetic disc face 38 The distance in axle center be 130 millimeters, if this, the 33, second magnetic disc face, the first magnetic disc face 34 and the 4th magnetic disc face 36 can be formed First packet magnetic disc face, and the 3rd magnetic disc face 37, magnetic disc face the 35, the 5th and the 6th magnetic disc face 37 are formed the second packet magnetic disc Face.As a example by M=3, the magnetic disc face that selected first packet magnetic disc face is selected carries out being written in parallel to data.Assume selected 0 magnetic track Magnetic track is write for data.
Due to technological design, also can there is the relative position error in the magnetic track being positioned at same cylinder.As, the first magnetic disc face 33 0 magnetic track 39 distance apart from the axle center of described motor spindle is 125 millimeters, motor described in 0 track distances in the second magnetic disc face 34 The distance in the axle center of main shaft is 124 millimeters, and described in 0 track distances in the 4th magnetic disc face 36, the distance in the axle center of motor spindle is 125 millimeters, therefore, between 0 magnetic track of same cylinder, there is also relative error.When 0 magnetic track using the first packet is as number During according to write magnetic track, the magnetic head navigating to this 0 magnetic track actually can not carry out data write to these three 0 magnetic track simultaneously, solves Certainly a kind of mode of this problem is to be positioned magnetic head to corresponding 0 magnetic track respectively by the micro machine being arranged on each magnetic head On, to overcome this magnetic track relative error problem.
For example, with reference to Fig. 4 b and Fig. 5 a, writing magnetic track M data be is 0 magnetic track 39 on the first magnetic disc face 33 and the During 0 magnetic track 307 on three magnetic disc faces 35, first it is to drive head arm 308 to carry out for the first time by voice coil motor to address, by magnetic head Arm 308 moves to location of C from F position, then carries out second time by micro machine and addresses, i.e. micro-by be arranged on a magnetic head Motor is by the E position on a magnetic head location to 0 magnetic track 39, and is positioned c magnetic head to 0 by the micro machine being arranged on c magnetic head D position on magnetic track 307, thus complete address procedures.
Again for example, with reference to Fig. 4 b and Fig. 5 b, it is 1 magnetic track 300 on the first magnetic disc face 33 at described M data write magnetic track During with 1 magnetic track 309 on the 3rd magnetic disc face 35, first it is to drive head arm 308 to carry out for the first time by voice coil motor to address, will Head arm 308 moves to C1 position from F1 position, then carries out second time by micro machine and addresses, i.e. by micro machine by a magnetic Head positions the E1 position to 1 magnetic track 300, and by the D1 position on c magnetic head location to 1 magnetic track 309, thus complete to address Journey.
In specific implementation process, when by described M magnetic head location to described M data write magnetic track, control described M Individual magnetic head receives M the coded data sent from least one read/write channel described, and wherein, described M coded data is institute State at least one channel and the data of mechanical hard disk described in said write carry out intersecting coding and the data that obtain.
See Fig. 3 a, when described M=2, the data of 1M are being write described M data write magnetic track, and the data of 1M Write LBA is LBA0 to LBA11, and according to intersecting coding rule, at least one read/write channel described is to LBA The data of LBA0, LBA2, LBA4, LBA6, LBA8 and LBA10 encode, it is thus achieved that a coded data, simultaneously also to logical block The data of address LBA1, LBA3, LBA5, LBA7, LBA9 and LBA11 encode, it is thus achieved that another coded data, thus obtain 2 coded data corresponding with the data of described 1M.
Specifically, when at least one read/write channel described is M read/write channel, before first in described mechanical hard disk Put amplifier and gate M the magnetic head passage corresponding with described M magnetic head simultaneously, control described M magnetic head and receive from accordingly The coded data that read/write channel sends, wherein, one end of described first preamplifier is electrically connected with in the plurality of magnetic head Each magnetic head, the other end is electrically connected with each read/write channel in described M read/write channel.
Specifically, it is electrically connected with each magnetic in the plurality of magnetic head due to one end of described first preamplifier Head, the other end connects each read/write channel in described M read/write channel, so so that at described first preamplifier When receiving described M the coded data from described M read/write channel transmission, each self-corresponding according to described M coded data Magnetic head, described first preamplifier gates M the magnetic head passage corresponding with described M magnetic head simultaneously so that described M coding Data are transmitted by corresponding magnetic head passage, so that described M magnetic head receives corresponding coded data.
For example, with reference to Fig. 4 a, a magnetic head corresponding A magnetic head passage, b magnetic head correspondence B magnetic head passage, c magnetic head correspondence C magnetic head leads to Road, d magnetic head correspondence D magnetic head passage, e magnetic head correspondence E magnetic head passage, f magnetic head correspondence F magnetic head passage, at described M sub-packet When including H1 subdata, H2 subdata and H3 subdata, and 8 magnetic tracks on the corresponding first magnetic disc face 33 of H1 subdata, and H2 subnumber According to 8 magnetic tracks on 8 magnetic tracks on corresponding second magnetic disc face 34, and the corresponding 3rd magnetic disc face 35 of H3 subdata, so so that institute State the first preamplifier and receive H1, H2 and the H3 corresponding with H1, H2 and H3 subdata sent from described M read/write channel Coded data, described first preamplifier gates A, B and C magnetic head passage simultaneously, and H1 coded data is passed through A magnetic head simultaneously Passage is sent to a magnetic head, and by B magnetic head passage, H2 coded data is sent to b magnetic head, and H3 coded data is passed through C magnetic head passage is sent to c magnetic head, wherein, when H1, H2 and H3 coded data is transmitted by A, B and C magnetic head passage, Also need, by the analog-digital converter in described first preamplifier, from digital signal, H1, H2 and H3 coded data is converted into mould Intend signal.
When at least one read/write channel described is M read/write channel, can gate and described M read/write channel pair simultaneously M the magnetic head answered, and make described M magnetic head can carry out data write operation simultaneously, and existing mechanical hard disk is at one section A magnetic head can only be controlled in time and carry out write operation, so, use the technical scheme of the application, it is possible to effectively improve machine The writing speed of tool hard disk.
In specific implementation process, when at least one read/write channel described is first read/write channel, use timesharing Multiplexing, is encoded described M subdata by the channel encoder in described first read/write channel, it is thus achieved that described M volume Code data.
Specifically, when at least one read/write channel described is first read/write channel, by described mechanical hard disk In the first buffer inputs from described first read/write channel send described M coded data, wherein, described first buffer One end of device is electrically connected with described first read/write channel, and M the first modulus that the other end is electrically connected with in described mechanical hard disk turns Parallel operation, each first analog-digital converter in described M the first analog-digital converter is electrically connected with in described M magnetic head at least One magnetic head；Described M the coded number sent from described first buffer is received by described M the first analog-digital converter According to；Control described M the first analog-digital converter and gate M the magnetic head passage corresponding with described M magnetic head simultaneously, control described M Individual magnetic head receives described M the coded data sent from described first buffer.
Wherein, described first analog-digital converter is for mutually changing between digital signal and analogue signal, at described M When coded data writes, described first analog-digital converter is for being converted into mould by described M coded data from digital signal Intending signal, when reading data on described N number of magnetic disc, described first analog-digital converter will be for reading data from analogue signal Being converted into digital signal, wherein, each first analog-digital converter in described M the first analog-digital converter can be with described M Each magnetic head in individual magnetic head is connected, it is also possible to be only connected with a magnetic head in described M magnetic head.
Concrete, owing to described first read/write channel is to encode described M subdata parallel so that described the Described M sub-Simultaneous Transmission of Data can be given described M magnetic head by one buffer so that described M magnetic head can receive simultaneously A part of data in described M coded data.
For example, with reference to Fig. 4 a and Fig. 5 c, a magnetic head corresponding A magnetic head passage, b magnetic head correspondence B magnetic head passage, c magnetic head correspondence C Magnetic head passage, d magnetic head correspondence D magnetic head passage, e magnetic head correspondence E magnetic head passage, f magnetic head correspondence F magnetic head passage, at described M son When data include H1 subdata and H2 subdata, and 9 magnetic tracks on the corresponding first magnetic disc face 33 of H1 subdata, and H2 subdata 9 magnetic tracks on corresponding 5th magnetic disc face 37, owing to H1 and H2 subdata is encoded by the first read/write channel 50 parallel, so, Make the H1 corresponding with H1 and H2 subdata that the reception that the first buffer 51 can be parallel sends from the first read/write channel 50 With H2 coded data.
Wherein, as a example by one transmission period is 6 microseconds, in the time period of 0-3 microsecond, the first read/write channel 50 is controlled right H1-1 data in H1 subdata encode, it is thus achieved that H1-1 coded data；And in 3-6 microsecond to the H2-1 in H2 subdata Data encode, it is thus achieved that H2-1 coded data, then, control the first read/write channel 50 and H1-1 coded data and H2-1 are encoded Data are sent to the first buffer 51, control the first buffer 51 and H1-1 coded data are sent to the first analog-digital converter simultaneously 52 and H2-1 coded data is sent to the first analog-digital converter 53, then control the first analog-digital converter 52 by H1-1 coded number According to being converted into the first analogue signal, described first analogue signal is sent to a magnetic head 54, controls the second analog-digital converter 53 simultaneously H2-1 coded data is converted into the second analogue signal, and described second analogue signal is sent to e magnetic head 55, so that a magnetic 54 and e magnetic heads 55 carry out being written in parallel to operation, send described second analogue signal to e magnetic head 55, in the manner described above, control Make the first read/write channel 50 parallel to the first remaining data in addition to H1-1 data in H1 coded data and H2 coded data In encode except the second remaining data after H2-1 data so that the reception that a magnetic head 54 and e magnetic head 55 can be parallel with H1 coded data that H1 subdata is corresponding and the H2 coded data corresponding with H2 subdata, and then make a magnetic head 54 and e magnetic head 55 Data can be written in parallel to, improve the writing speed of described mechanical hard disk.
It addition, the first analog-digital converter 52 can be electrically connected with a, b, c, d, e and f magnetic head, equally, the first analog-digital converter 53 can be electrically connected with a, b, c, d, e and f magnetic head, when described M magnetic head is a magnetic head 54 and e magnetic head 55, and the first analog digital conversion Device 52 only gates A magnetic head passage, causes H1 subdata can transmit to a magnetic head 54 from the first read/write channel 50, meanwhile, and the second mould Number converter 53 only gates E magnetic head passage, causes H2 subdata can transmit to e magnetic head 55 from the first read/write channel 50.
When at least one read/write channel described is described first read/write channel, described first read/write channel is to use timesharing Described M coded data is encoded by multiplexing, and described first read/write channel to described M coded data be based on Electrical number processes, due to the high speed of Electric signal processing, enabling process described M subdata parallel, lead Causing described M coded data is also parallel being stored in described first buffer, the most simultaneously will be with described M subdata M corresponding coded data by the parallel transmission of individual first analog-digital converter of described M to corresponding magnetic head so that described M is individual Magnetic head can be parallel write data, described M coded data is write in corresponding magnetic track, thus it is hard effectively to improve machinery The writing speed of dish.
In specific implementation process, when the first quantity at least one read/write channel described is less than M and is more than 1, in choosing When described M subdata is encoded by a third reading write-channel at least one read/write channel described in selecting, described control Make described M magnetic head and receive described M the coded data sent from least one read/write channel described, can use as above-mentioned It is embodiment during described first read/write channel at least one read/write channel described；Selecting at least one read-write letter described When described M subdata is encoded by least two read/write channel in road, described M the magnetic head of described control receive from Described M the coded data that at least one read/write channel described sends, is each according in described at least two read/write channel The number of the subdata of the process in individual read/write channel, uses corresponding embodiment with this, processes a read/write channel Subdata number more than 1 time, then use above-mentioned as described at least one read/write channel be as described in the first read/write channel time Embodiment, the number of the subdata processed read/write channel equal to 1, then use above-mentioned as described at least one is read Write-channel is embodiment during described M read/write channel, succinct for description, just repeats no more at this.
After described M magnetic head receives described M coded data, control described M magnetic head and carry out being written in parallel to behaviour Make, by described M coded data write described M data write magnetic track.
In specific implementation process, each magnetic head controlled in described M magnetic head is written in parallel to corresponding coded data, Described M coded data is write on corresponding magnetic track.
Concrete, when at least one read/write channel described is M read/write channel, control in described M magnetic head is each Individual magnetic head carries out write operation simultaneously, described M coded data is write on corresponding magnetic track.
For example, with reference to Fig. 4 a, a magnetic head corresponding A magnetic head passage, b magnetic head correspondence B magnetic head passage, c magnetic head correspondence C magnetic head leads to Road, d magnetic head correspondence D magnetic head passage, e magnetic head correspondence E magnetic head passage, f magnetic head correspondence F magnetic head passage, at described M sub-packet When including H1 subdata, H2 subdata and H3 subdata, and 8 magnetic tracks on the corresponding first magnetic disc face 33 of H1 subdata, and H2 subnumber According to 8 magnetic tracks on 8 magnetic tracks on corresponding second magnetic disc face 34, and the corresponding 3rd magnetic disc face 35 of H3 subdata, so so that institute State the first preamplifier and receive H1, H2 and the H3 corresponding with H1, H2 and H3 subdata sent from described M read/write channel Coded data, described first preamplifier gates A, B and C magnetic head passage simultaneously, and H1 coded data is passed through A magnetic head simultaneously Passage is sent to a magnetic head, and by B magnetic head passage, H2 coded data is sent to b magnetic head, and H3 coded data is passed through C magnetic head passage is sent to c magnetic head, controls a, b and c magnetic head and carries out write operation simultaneously, H1 coded data is write first simultaneously On 8 magnetic tracks on magnetic disc face 33, and H2 coded data is write on 8 magnetic tracks on the second magnetic disc face 34, and H3 is encoded On 8 magnetic tracks on data write the 3rd magnetic disc face 35.
Concrete, when at least one read/write channel described is described first read/write channel, control in described M magnetic head Each magnetic head is written in parallel to corresponding coded data, described M coded data is write on corresponding magnetic track.
Seeing Fig. 4 a and Fig. 5 c, a magnetic head corresponding A magnetic head passage, b magnetic head correspondence B magnetic head passage, c magnetic head correspondence C magnetic head leads to Road, d magnetic head correspondence D magnetic head passage, e magnetic head correspondence E magnetic head passage, f magnetic head correspondence F magnetic head passage, at described M sub-packet When including H1 subdata and H2 subdata, and 9 magnetic tracks on the corresponding first magnetic disc face 33 of H1 subdata, and H2 subdata correspondence the 9 magnetic tracks on five magnetic disc faces 37, owing to H1 and H2 subdata is encoded, so by the first read/write channel 50 parallel so that the One buffer 51 can be parallel H1 and H2 corresponding with H1 and H2 subdata sent from the first read/write channel 50 that receive compile Code data.
Wherein, as a example by one transmission period is 6 microseconds, in the time period of 0-3 microsecond, the first read/write channel 50 is controlled right H1-1 data in H1 subdata encode, it is thus achieved that H1-1 coded data；And in 3-6 microsecond to the H2-1 in H2 subdata Data encode, it is thus achieved that H2-1 coded data, then, control the first read/write channel 50 and H1-1 coded data and H2-1 are encoded Data are sent to the first buffer 51, control the first buffer 51 and H1-1 coded data are sent to the first analog-digital converter simultaneously 52 and H2-1 coded data is sent to the first analog-digital converter 53, then control the first analog-digital converter 52 by H1-1 coded number According to being converted into the first analogue signal, described first analogue signal is sent to a magnetic head 54, controls the second analog-digital converter 53 simultaneously H2-1 coded data is converted into the second analogue signal, and described second analogue signal is sent to e magnetic head 55, so that a magnetic 54 and e magnetic heads 55 carry out being written in parallel to operation, send described second analogue signal to e magnetic head 55, in the manner described above, control Make the first read/write channel 50 parallel to the first remaining data in addition to H1-1 data in H1 coded data and H2 coded data In encode except the second remaining data after H2-1 data so that the reception that a magnetic head 54 and e magnetic head 55 can be parallel with H1 coded data that H1 subdata is corresponding and the H2 coded data corresponding with H2 subdata, and then make a magnetic head 54 and e magnetic head 55 Data can be written in parallel to, improve the writing speed of described mechanical hard disk.
Concrete, when the first quantity of at least one read/write channel described is less than M and more than 1, described in select at least When described M subdata is encoded by a third reading write-channel in one read/write channel, described M the magnetic of described control Head carries out being written in parallel to operation, by described M coded data write described M data write magnetic track, can use as above-mentioned It is embodiment during described first read/write channel at least one read/write channel described；Selecting at least one read-write letter described When described M subdata is encoded by least two read/write channel in road, described M the magnetic head of described control is carried out parallel Write operation, by described M coded data write described M data write magnetic track, is according to described at least two read-write letter The number of the subdata of the process in each read/write channel in road, uses corresponding embodiment with this, a reading Write-channel process subdata number more than 1 time, then use above-mentioned as described at least one read/write channel be as described in first Embodiment during read/write channel, the number of the subdata processed read/write channel equal to 1, then use above-mentioned as described in At least one read/write channel is embodiment during described M read/write channel, succinct for description, just repeats no more at this ?.
All embodiments in one in conjunction with the embodiments, the described data of described mechanical hard disk that will write are according to described logical block The order of address is written in parallel to described M data write magnetic track, the most also includes: by each two magnetic in described M magnetic disc face The each self-corresponding subdata in dish face carries out Error Correction of Coding, it is thus achieved that at least one error correction data；By at least one Error Correction of Coding described Each error correction data in data is written in parallel on described M data write magnetic track.
In specific implementation process, described Error Correction of Coding can encode, one to use the modes such as checksum coding When individual first magnetic disc face is damaged, described first magnetic disc can be restored by least one error correction data described and another magnetic disc face Data on face, reduce the probability causing data to recover because magnetic disc face damages, with checksum coding are in detail below Example.
For example, with reference to Fig. 4 a, if described M magnetic disc face is the first magnetic disc face 33 and the 3rd magnetic disc face 35, if write the 3rd data in one magnetic disc face 33 are 0,001 1100, when the 4th data in write the 3rd magnetic disc face 35 are 1,000 1100, by institute State the third and fourth data and carry out odd number coding, it is thus achieved that at least one odd number described is encoded to 1,001 0000, by 1,001 0000 It is written in parallel in the same track in the first magnetic disc face 33 and the 3rd magnetic disc face 35, when the first magnetic disc face 33 is damaged, then can lead to Cross described 4th data 1,000 1100 and 1,001 0000 of the storage on the 3rd magnetic disc face 35 and restore described 3rd data and be 00011100 such that it is able to reduce the probability causing data to recover because magnetic disc damages.
Again for example, with reference to Fig. 4 a, if described M magnetic disc face is the first magnetic disc face 33 and the 3rd magnetic disc face 35 and the 4th magnetic disc During face 36, if the data in write the first magnetic disc face 33 are 1010, the data in write the 3rd magnetic disc face 35 are 0101, write the 4th magnetic The data in dish face 36 are 1000, and data 1010 and 0101 are carried out odd number coding, and obtaining an error correction data is 1111, by data 1010 and 1000 carry out odd number coding, and obtaining another error correction data is 0010, and data 0101 and 1000 are carried out odd number coding, It is 1101 to the 3rd error correction data, error correction data 1111 is written in parallel to respectively the first magnetic disc face 33 and the 3rd magnetic disc face 35 In same track, error correction data 0010 is written in parallel in the same track in the first magnetic disc face 33 and the 4th magnetic disc face 36, and Error correction data 1101 is written in parallel in the same track in the 3rd magnetic disc face 35 and the 4th magnetic disc face 36, the 3rd magnetic disc face 35 He When 4th magnetic disc face 36 is damaged, data 1010 and the error correction data 0010 and 1111 of storage in the first magnetic disc face 33 can be passed through, Thus restoring the data of storage in the 3rd magnetic disc face is 0101, and in the 4th magnetic disc face 36, the data of storage are 1000.
The value of described M is the addressing mode supported according to described mechanical hard disk and writing mode determines, such as, Described mechanical hard disk is time 3 magnetic heads of multipotency support are written in parallel to, then the addressing mode of mechanical hard disk can use above-mentioned Way of example carries out intersection addressing, and the value of described M can be 2 or 3.
In the embodiment of the present invention, technical scheme after determining M data write magnetic track from M magnetic disc face, Encoding for intersecting owing to being positioned at the addressing mode of the LBA of the magnetic track of same cylinder in described M magnetic disc face, it is right to cause Write the data of described mechanical hard disk and be also carried out intersecting coding so that the described data writing described mechanical hard disk can be according to The order of described LBA is written in parallel in described M data write magnetic track, it is achieved thereby that be written in parallel to data, and shows Some mechanical hard disks only have a magnetic head within the same time period and carry out write operation, and in the same time period in the technical program Interior can have multiple magnetic head to carry out write operation such that it is able to is effectively improved the writing speed of mechanical hard disk.
Embodiment two
The embodiment of the present invention two proposes a kind of mechanical hard disk, and described mechanical hard disk has multiple disk, wherein, described Multiple disks can use plastic material, aluminum and glass material as substrate, expect the most again substrate and aluminum material substrate and Coat magnetic material in frit base glass to constitute..
Seeing Fig. 6, this mechanical hard disk includes:
First magnetic track determines unit 601, for determining M data write magnetic track, wherein, described M from M magnetic disc face The addressing mode of the LBA being positioned at the magnetic track of same cylinder in magnetic disc face addresses for intersecting, and M is the integer not less than 2；
Data write unit 602, determines, from the first magnetic track, described M the data write that unit 601 sends for receiving The data writing described mechanical hard disk are written in parallel to described M data write according to the order of described LBA by magnetic track Magnetic track, wherein, described M data write magnetic track is positioned at same cylinder, and is originally written into magnetic track for described data.
Concrete, when getting the data needing to write described mechanical hard disk, need from the plurality of magnetic disc face true Fixed described M data write magnetic track, described M data write magnetic track is used for storing described first data, due to described M magnetic disc Face is positioned at the addressing mode of LBA of the magnetic track of same cylinder for intersecting addressing so that described needs writes described machine The data of tool hard disk are also required to carry out intersect addressing equally, write to determine from the described data needing to write described mechanical hard disk Enter the data that each data write magnetic track in described M data write magnetic track is corresponding.
It is also preferred that the left the first magnetic track determines unit 601, specifically for controlling the relative error in described M magnetic disc face less than threshold Value.
Specifically, the relative error in described M magnetic disc face is less than threshold value, in the relative error in described M magnetic disc face During less than threshold value so that the relative error of the magnetic track at same cylinder in described M magnetic disc face also can be less than threshold value, so that Obtain described mechanical hard disk when being addressed so that M the magnetic head corresponding with described M write magnetic track in described mechanical hard disk Location is less to the time phase difference on described M write magnetic track, such as, in 10 microseconds, 50 microseconds, within the time of 100 microseconds.
Wherein, described threshold value can be such as 0.5 millimeter, and 0.8 millimeter and 1.0 millimeters of equivalences, in the value of described threshold value More hour, described M magnetic head location is the least to the most described M the addressing time writing magnetic track so that described mechanical hard disk can be more Fast carrying out is written in parallel to operation, improves the writing speed of described mechanical hard disk.
It is also preferred that the left the first magnetic track determines unit 601, specifically for when M=2, control described M magnetic disc face and be positioned at same On disk.
Certainly, when M=2, described M magnetic disc face can also be positioned on different disks.
For example, with reference to Fig. 4 a, when M=2, described M magnetic disc face can be such as the first magnetic disc face 33 and the second magnetic disc Face 34, it is also possible to be the first magnetic disc face 33 and the 3rd magnetic disc face 35.
Further, the first magnetic track determines unit 601, specifically for controlling to be positioned at same cylinder in described M magnetic disc face The addressing mode of LBA of magnetic track in units of a logical block status, carry out intersecting addressing.
Such as, as a example by data 1,001 1,110 1,010 0101, binary data corresponding for LBA LBA0 is 1001, binary data corresponding for LBA LBA1 is 1110, and binary data corresponding for LBA LBA2 is 1010, binary data corresponding for LBA LBA3 is 0101, carries out at M=2 and in units of a logical block status During intersection addressing, according to even-odd partition, it is thus achieved that described Part I data are 1,001 1010 and described Part II data are 1110 0101。
Further, the first magnetic track determines unit 601, specifically for controlling to be positioned at same cylinder in described M magnetic disc face Magnetic track LBA addressing mode with M/mono-LBA be unit carry out intersect addressing.
Such as, as a example by same data 1,001 1,110 1,010 0101, LBA0 is divided into LBA0-1 and LBA0-2, and Binary data corresponding for LBA0-1 is 10, and binary data corresponding for LBA0-2 is 01, and LBA1, LBA2 and LBA3 are carried out phase Same process, at M=2 and with M/mono-logical block status, i.e. 1/2nd LBAs are that unit carries out intersection addressing Time, it is thus achieved that described Part III data are 1,011 1001 and described Part IV data are 0,110 1001.
Further, data write unit 602, specifically for writing described in described mechanical hard disk data and said write The verification data of mechanical hard disk data are written in parallel to described M data write magnetic track according to the order of described LBA.
Concrete, described inspection data can obtain to use the modes such as checksum coding verification so that data is being write When entering described mechanical hard disk, error data can be corrected by described verification data, it is ensured that write the data of described mechanical hard disk Correctness.
Further, when detecting that one needs the data writing described mechanical hard disk, can be from described mechanical hard disk In multiple magnetic disc faces in randomly choose described M magnetic disc face, then according to the data storage condition on described M magnetic disc face, From described M magnetic disc face, described M data write magnetic track is determined so that described M data write magnetic track can be deposited with this Store up described data.
It is also preferred that the left when detecting that one needs the data writing described mechanical hard disk, it is also possible to from described mechanical hard disk Multiple packet magnetic disc faces corresponding to multiple magnetic disc faces in select least one set magnetic disc face, wherein, the plurality of packet magnetic disc face In each packet magnetic disc face including at least two magnetic disc faces, obtain as described in described M magnetic disc face that at least one divides All magnetic disc faces that group magnetic disc bread contains, determine described M data write magnetic track the most again from described M magnetic disc face.
Wherein, the plurality of packet magnetic disc face is each dish face in all magnetic disc faces comprised based on the plurality of disk Between relative error divide, wherein, the multiple magnetic disc faces that relative error is little form a packet magnetic disc face, are detecting When having data to write, select from the plurality of packet magnetic disc face at least one packet magnetic disc face to store described data, based on At least one packet magnetic disc face described, may thereby determine that described M magnetic disc face, determines from described M magnetic disc face the most again Described M data write magnetic track.
It is also preferred that the left when determining described M data write magnetic track, also need to be read by least one in described mechanical hard disk Write-channel carries out intersection addressing to described data, it is thus achieved that M subdata.
Wherein, at least one read/write channel described can be with a LBA or M/mono-LBA Unit carries out intersection addressing, it is thus achieved that described M subdata.
It is also preferred that the left after obtaining described M subdata, also need by least one read/write channel described described M Data encode, it is thus achieved that M coded data.
Wherein, when at least one read/write channel described is M read/write channel, the most right by described M read/write channel Corresponding subdata encodes, it is thus achieved that described M coded data.
Further, when at least one read/write channel described is first read/write channel, uses time-sharing multiplex, pass through Described M subdata is encoded by the channel encoder in described first read/write channel, it is thus achieved that described M coded data.
It is also preferred that the left after determining described M data write magnetic track, determine from multiple magnetic heads of described mechanical hard disk with M the magnetic head that described M data write magnetic track is corresponding, positions to corresponding magnetic track respectively by described M magnetic head.
Wherein, the quantity in magnetic disc face and the quantity of magnetic head that described mechanical hard disk has are identical, hard at described machinery When dish has K disk, wherein, K is the integer not less than 2, owing to a disk has two magnetic disc faces so that described Multiple magnetic heads are 2K magnetic head, then select M the magnetic head corresponding with described M data write magnetic track from described 2K magnetic head, Owing to described M data write magnetic track is positioned on same cylinder so that described M magnetic head and described M data write magnetic track one One is corresponding, is positioned described M magnetic head to accordingly respectively by the micro machine on each magnetic head in described M magnetic head the most again Magnetic track on.
Wherein, after determining described M magnetic head, first pass through the voice coil motor pair for driving described first head arm Described first head arm carries out seeking for the first time, is adjusted from described first initial position the current location of described first head arm To the described second position, seek so that carrying out second time by the micro machine being arranged on each magnetic head in described M magnetic head Road, positions to corresponding magnetic track respectively by described M magnetic head, wherein, at described M data write magnetic track at the plurality of magnetic Time on different cylinders on video disc, when carrying out seeking for the second time by micro machine, owing to each magnetic head is to corresponding magnetic track Distance is different, causes described M the magnetic head tracking time when carrying out second time and seeking different so that described M magnetic head is carried out The time being written in parallel to operation can extend, and causes the writing speed of described mechanical hard disk to decrease.
It is also preferred that the left when by described M magnetic head location to described M data write magnetic track, control described M magnetic head and receive Described M the coded data sent from least one read/write channel described.
Wherein, when at least one read/write channel described is first read/write channel, use time-sharing multiplex, by described Described M subdata is encoded by the channel encoder in the first read/write channel, it is thus achieved that described M coded data.
Further, when at least one read/write channel described is M read/write channel, by described mechanical hard disk One preamplifier gates M the magnetic head passage corresponding with described M magnetic head simultaneously, controls described M magnetic head and receives from phase The coded data that the read/write channel answered sends, wherein, one end of described first preamplifier is electrically connected with the plurality of magnetic head In each magnetic head, the other end is electrically connected with each read/write channel in described M read/write channel.
It is also preferred that the left after described M magnetic head receives described M coded data, control described M magnetic head and carry out parallel Write operation, by described M coded data write described M data write magnetic track.
Wherein, when at least one read/write channel described is M read/write channel, each in described M magnetic head is controlled Magnetic head carries out write operation simultaneously, described M coded data is write on corresponding magnetic track.
Further, when at least one read/write channel described is described first read/write channel, control in described M magnetic head Each magnetic head be written in parallel to corresponding coded data, described M coded data is write on corresponding magnetic track.
It is also preferred that the left described, the data writing described mechanical hard disk are written in parallel to institute according to the order of described LBA State M data write magnetic track, the most also include: by each self-corresponding subdata in each two magnetic disc face in described M magnetic disc face Carry out Error Correction of Coding, it is thus achieved that at least one error correction data；By each the error correction number at least one error correction encoded data described According to being written in parallel on described M data write magnetic track.
In specific implementation process, described Error Correction of Coding can encode, one to use the modes such as checksum coding When individual first magnetic disc face is damaged, described first magnetic disc can be restored by least one error correction data described and another magnetic disc face Data on face, reduce the probability causing data to recover because magnetic disc face damages, with checksum coding are in detail below Example.
For example, with reference to Fig. 4 a, if described M magnetic disc face is the first magnetic disc face 33 and the 3rd magnetic disc face 35, if write the 3rd data in one magnetic disc face 33 are 0,001 1100, when the 4th data in write the 3rd magnetic disc face 35 are 1,000 1100, by institute State the third and fourth data and carry out odd number coding, it is thus achieved that at least one odd number described is encoded to 1,001 0000, by 1,001 0000 It is written in parallel in the same track in the first magnetic disc face 33 and the 3rd magnetic disc face 35, when the first magnetic disc face 33 is damaged, then can lead to Cross described 4th data 1,000 1100 and 1,001 0000 of the storage on the 3rd magnetic disc face 35 and restore described 3rd data and be 00011100 such that it is able to reduce the probability causing data to recover because magnetic disc damages.
The description of the embodiment of the present invention is referred to the description of embodiment of the method, does not repeats them here.
In the embodiment of the present invention, technical scheme after determining M data write magnetic track from M magnetic disc face, Encoding for intersecting owing to being positioned at the addressing mode of the LBA of the magnetic track of same cylinder in described M magnetic disc face, it is right to cause Write the data of described mechanical hard disk and be also carried out intersecting coding so that the described data writing described mechanical hard disk can be according to The order of described LBA is written in parallel in described M data write magnetic track, it is achieved thereby that be written in parallel to data, and shows Some mechanical hard disks only have a magnetic head within the same time period and carry out write operation, and in the same time period in the technical program Interior can have multiple magnetic head to carry out write operation such that it is able to is effectively improved the writing speed of mechanical hard disk.
Embodiment three
The embodiment of the present invention three proposes a kind of mechanical hard disk, and described mechanical hard disk has multiple magnetic disc, and each magnetic disc Sheet has two magnetic disc faces.
Seeing Fig. 7, this mechanical hard disk includes:
Memorizer 701, for caching the data writing described mechanical hard disk；
Controller 702, for determining M data write magnetic track, wherein, position in described M magnetic disc face from M magnetic disc face Addressing mode in the LBA of the magnetic track of same cylinder addresses for intersecting, and M is the integer not less than 2, and writes described Enter the data of described mechanical hard disk and be written in parallel to described M data write magnetic track according to the order of described LBA, wherein, Described M data write magnetic track is positioned at same cylinder, and is originally written into magnetic track for described data.
Wherein, the electronic equipment such as memorizer 701 e.g. cache memory, control chip 702 e.g. processes core Sheet, the electronic equipment such as single-chip microcomputer.
Wherein, when getting the data needing to write described mechanical hard disk, need to determine from the plurality of magnetic disc face Described M data write magnetic track, described M data write magnetic track is used for storing described first data, due to described M magnetic disc face In be positioned at same cylinder magnetic track LBA addressing mode for intersect addressing so that described needs writes described machinery The data of hard disk are also required to carry out intersect addressing equally, to determine write from the described data needing to write described mechanical hard disk Each data in described M data write magnetic track write the data that magnetic track is corresponding.
It is also preferred that the left controller 702, specifically for controlling the relative error in described M magnetic disc face less than threshold value.
Wherein, the relative error in described M magnetic disc face is less than threshold value, and the relative error in described M magnetic disc face is less than threshold During value so that the relative error of the magnetic track at same cylinder in described M magnetic disc face also can be less than threshold value, so that described Mechanical hard disk is when being addressed so that M the magnetic head corresponding with described M write magnetic track in described mechanical hard disk positions extremely Time phase difference on described M write magnetic track is less, such as, in 10 microseconds, 50 microseconds, within the time of 100 microseconds.
Concrete, described threshold value can be such as 0.5 millimeter, and 0.8 millimeter and 1.0 millimeters of equivalences, taking of described threshold value More hour, described M magnetic head location is the shortest to the most described M the addressing time writing magnetic track so that described mechanical hard disk can for value Carry out faster being written in parallel to operation, improve the writing speed of described mechanical hard disk.
It is also preferred that the left controller 702, specifically for when M=2, control described M magnetic disc face and be positioned on same disk.
Certainly, when M=2, described M magnetic disc face can also be positioned on different disks.For example, with reference to Fig. 4 a, at M When=2, described M magnetic disc face can be such as the first magnetic disc face 33 and the second magnetic disc face 34, it is also possible to is the first magnetic disc face 33 With the 3rd magnetic disc face 35.
It is also preferred that the left controller 702, specifically for controlling described M magnetic disc face is positioned at the logic of the magnetic track of same cylinder The addressing mode of block address carries out intersection addressing in units of a logical block status.
It is also preferred that the left controller 702, specifically for controlling described M magnetic disc face is positioned at the logic of the magnetic track of same cylinder The addressing mode of block address is that unit carries out intersection addressing with M/mono-LBA.
It is also preferred that the left controller 702, specifically for hard by writing machinery described in the data of described mechanical hard disk and said write The verification data of the data of dish are written in parallel to described M data write magnetic track according to the order of described LBA.
It is also preferred that the left controller 702, specifically it is additionally operable to each self-corresponding for each two magnetic disc face in described M magnetic disc face Subdata carries out Error Correction of Coding, it is thus achieved that at least one error correction data；By each at least one error correction encoded data described Error correction data is written in parallel on described M data write magnetic track.
In actual application, described mechanical hard disk to implement process as follows:
See Fig. 8, when controller 702 detects that memorizer 701 has cached the data for writing described mechanical hard disk, Controller 702 can randomly choose described M magnetic disc face, then according to described in the multiple magnetic disc faces from described mechanical hard disk Data storage condition on M magnetic disc face, determines described M data write magnetic track with this from described M magnetic disc face so that Described M data write magnetic track can store described data.
When controller 702 detects that memorizer 701 has cached the data for writing described mechanical hard disk, controller 702 can also select least one set magnetic disc face from multiple packet magnetic disc faces that multiple magnetic disc faces of described mechanical hard disk are corresponding, Wherein, each the packet magnetic disc face in the plurality of packet magnetic disc face, including at least two magnetic disc faces, obtains as described M All magnetic disc faces that at least one the packet magnetic disc bread described in magnetic disc face contains, determine institute the most again from described M magnetic disc face State M data write magnetic track.
Wherein, the plurality of packet magnetic disc face is each dish face in all magnetic disc faces comprised based on the plurality of disk Between relative error divide, wherein, the multiple magnetic disc faces that relative error is little form a packet magnetic disc face, are detecting When having data to write, select from the plurality of packet magnetic disc face at least one packet magnetic disc face to store described data, based on At least one packet magnetic disc face described, may thereby determine that described M magnetic disc face, determines from described M magnetic disc face the most again Described M data write magnetic track.
It is also preferred that the left at least one read/write channel 703, for when determining described M data write magnetic track, also needing described The data writing described mechanical hard disk carry out intersection addressing, it is thus achieved that M subdata, and encode described M subdata, obtain Obtain M coded data.
Wherein, at least one read/write channel 703 can be with a LBA or M/mono-LBA for single Position carries out intersection addressing, it is thus achieved that described M subdata.
Concrete, when at least one read/write channel described is first read/write channel, use time-sharing multiplex, by institute Described M subdata is encoded by the channel encoder stated in the first read/write channel, it is thus achieved that described M coded data.
It is also preferred that the left magnetic head control device 704, for after determining described M data write magnetic track, from described mechanical hard disk Multiple magnetic heads in determine M the magnetic head corresponding with described M data write magnetic track, described M magnetic head is positioned respectively to phase On the magnetic track answered.
Wherein, the quantity in magnetic disc face and the quantity of magnetic head that described mechanical hard disk has are identical, hard at described machinery When dish has K disk, wherein, K is the integer not less than 2, owing to a disk has two magnetic disc faces so that described Multiple magnetic heads are 2K magnetic head, then select M the magnetic head corresponding with described M data write magnetic track from described 2K magnetic head, Owing to described M data write magnetic track is positioned on same cylinder so that described M magnetic head and described M data write magnetic track one One is corresponding, is positioned described M magnetic head to accordingly respectively by the micro machine on each magnetic head in described M magnetic head the most again Magnetic track on.
Wherein, after determining described M magnetic head, first pass through the voice coil motor pair for driving described first head arm Described first head arm carries out seeking for the first time, is adjusted from described first initial position the current location of described first head arm To the described second position, seek so that carrying out second time by the micro machine being arranged on each magnetic head in described M magnetic head Road, positions to corresponding magnetic track respectively by described M magnetic head, wherein, at described M data write magnetic track at the plurality of magnetic Time on different cylinders on video disc, when carrying out seeking for the second time by micro machine, owing to each magnetic head is to corresponding magnetic track Distance is different, causes described M the magnetic head tracking time when carrying out second time and seeking different so that described M magnetic head is carried out The time being written in parallel to operation can extend, and causes the writing speed of described mechanical hard disk to decrease.
It is also preferred that the left M magnetic head 705, write for M magnetic head 705 being positioned to described M data at magnetic head control device 704 When entering magnetic track, receive described M the coded data sent from least one read/write channel 703, carry out being written in parallel to operation, will On described M coded data write described M data write magnetic track.
Wherein, when at least one read/write channel described is M read/write channel, each in described M magnetic head is controlled Magnetic head carries out write operation simultaneously, described M coded data is write on corresponding magnetic track.
Further, when at least one read/write channel described is described first read/write channel, control in described M magnetic head Each magnetic head be written in parallel to corresponding coded data, described M coded data is write on corresponding magnetic track.
All embodiments in three in conjunction with the embodiments, at least one read/write channel 703, specifically for: read at least one When write-channel 703 is first read/write channel, use time-sharing multiplex, for being compiled by the channel in described first read/write channel Described M subdata is encoded by code device, it is thus achieved that described M coded data.
Concrete, described mechanical hard disk also includes the first buffer, sends from described first read/write channel for receiving Described M coded data, wherein, one end of described first buffer is electrically connected with described first read/write channel.
Further, described mechanical hard disk includes M the first analog-digital converter, for receiving from described first buffer Described M the coded data sent, and gate M the magnetic head passage corresponding with described M magnetic head simultaneously, described M the first mould The other end of number converter and described first buffer is electrically connected with, in described M the first analog-digital converter each first Analog-digital converter is electrically connected with at least one magnetic head in described M magnetic head, so that described M magnetic head receives from described Described M the coded data that first buffer sends.
The description of the embodiment of the present invention is referred to the description of embodiment of the method, does not repeats them here.
In the embodiment of the present invention, technical scheme after determining M data write magnetic track from M magnetic disc face, Encoding for intersecting owing to being positioned at the addressing mode of the LBA of the magnetic track of same cylinder in described M magnetic disc face, it is right to cause Write the data of described mechanical hard disk and be also carried out intersecting coding so that the described data writing described mechanical hard disk can be according to The order of described LBA is written in parallel in described M data write magnetic track, it is achieved thereby that be written in parallel to data, and shows Some mechanical hard disks only have a magnetic head within the same time period and carry out write operation, and in the same time period in the technical program Interior can have multiple magnetic head to carry out write operation such that it is able to is effectively improved the writing speed of mechanical hard disk.
Embodiment four
The embodiment of the present invention four proposes a kind of method of digital independent, is applied to mechanical hard disk, and described mechanical hard disk has Have multiple disk, wherein, the plurality of disk can use plastic material, aluminum and glass material as substrate, so After expect to coat in substrate and aluminum material substrate and frit base glass magnetic material again and constitute.
As it is shown in figure 9, the concrete processing procedure of the method is as follows:
Step S901: determine N number of digital independent magnetic track from N number of magnetic disc face, and determine described N number of magnetic disc face is positioned at The intersection addressing mode of the LBA of the magnetic track of one cylinder, N is the integer not less than 2；
Step S902: parallel from described N number of digital independent magnetic track read N number of data, it is thus achieved that by described N number of data according to The reading data of the sequential combination of described LBA, wherein, described N number of digital independent magnetic track is positioned at same cylinder, And it is the initial read magnetic track of described N number of data；
Wherein, in step S901, when detecting that described reading data are read from the multiple disks of institute by needs, from The plurality of disk is searched the N number of magnetic disc face for storing described reading data, then determines from described N number of magnetic disc face For storing described N number of digital independent magnetic track of described reading data, and determine in described N number of magnetic disc face and be positioned at same cylinder The intersection addressing mode of the LBA of magnetic track.
In specific implementation process, when CPU needs to read described first data from described mechanical hard disk, reading can be sent Instruction fetch is to institute's mechanical hard disk so that described mechanical hard disk can based on described reading command detection to needs from the plurality of magnetic Video disc reads described first data, and the LBA parameter corresponding with described first data also can be sent to described machinery by this CPU Hard disk so that described mechanical hard disk determines described N number of digital independent magnetic track by described LBA parameter.
Concrete, first obtain the i-th logic addressing value in the LBA parameter corresponding with described first data, use public affairs Formula 1, is converted to C/H/S (Cylinder/Head/Sector) value by i-th logic addressing value, and wherein, Heads (magnetic head number) uses H represents, Cylinders (cylinder number) represents for C, and Sectors (sector number) represents with S, the most permissible by C/H/S value Determine described L magnetic disc.
LBA=(C-CS) * PH*PS+ (H-HS) * PS+ (S-SS) formula 1
Wherein, C represents current cylinder number, and H represents current head number, and S represents that current sector number, CS represent start cylinder Number, HS represents initial head number, and SS represents that start sector number, PS represent every magnetic track sector number, and PH represents every cylinder track number.
At CS=0, when HS=0, SS=1, PS=63, PH=255, C/H/S value corresponding for LBA0 is (0,0,1), LBA62 Corresponding C/H/S value be (0,0,63) C/H/S value corresponding with LBA63 be (0,1,1), then the plurality of disk of LBAO correspondence In the first magnetic disc face on 0 magnetic track on 1 sector, 0 magnetic on the first magnetic disc face in the corresponding the plurality of disk of LBA62 63 sectors on road, 1 sector on 0 magnetic disc on the second magnetic disc face in the corresponding the plurality of disk of LBA63, so, can To determine the described N number of digital independent magnetic track corresponding with described first data.
Wherein, the relative error in described N number of magnetic disc face is less than threshold value, and the relative error in described N number of magnetic disc face is less than threshold value Time so that the relative error of the magnetic track at same cylinder in described N number of magnetic disc face also can be less than threshold value, so that described machine Tool hard disk is when being addressed so that the N number of magnetic head location corresponding with described N number of digital independent magnetic track in described mechanical hard disk Time phase difference to described N number of digital independent magnetic track is less, such as, in 10 microseconds, 50 microseconds, within the time of 100 microseconds.
Wherein, described threshold value can be such as 0.5 millimeter, and 0.8 millimeter and 1.0 millimeters of equivalences, in the value of described threshold value More hour, the addressing time is the shortest so that described mechanical hard disk can carry out parallel read operations faster, improves described machinery hard The data reading speed of dish.
In actual application, after determining the described N number of magnetic head corresponding with described N number of digital independent magnetic track, first First pass through voice coil motor to carry out head arm seeking for the first time, then by being arranged on each magnetic head in described N number of magnetic head Micro machine carries out second time and seeks, when described threshold value is 0.5 millimeter, by described N number of magnetic head location to described N number of digital independent The addressing time of magnetic track is 10 microseconds, and is 1.0 millimeters in described threshold value, is read to described N number of data described N number of magnetic head location The addressing time taking magnetic track is 50 microseconds, causes when described threshold value is 0.5 millimeter, described mechanical hard disk can faster and then Parallel read operations, thus improve the data reading speed of described mechanical hard disk.
Wherein, when N=2, described N number of magnetic disc face is positioned on same disk, and certainly, described N number of magnetic disc face can also It is positioned on different disks.
Concrete, described intersection addressing mode can be the logic of the magnetic track being positioned at same cylinder in described N number of magnetic disc face Block address carries out the mode of intersection addressing in units of a LBA, it is also possible to be to be positioned in described N number of magnetic disc face together The LBA of the magnetic track of one cylinder is in the way of unit carries out intersection addressing by N/mono-LBA.
Such as, when described N=2, as shown in Figure 3 a, equally with 1M data instance, described 1M data write logical block ground Location is LBA0 to LBA11, owing on i-th magnetic track on the A of magnetic disc face, the data of storage are LBA0, LBA2, LBA4, LBA6, LBA8 With the data of LBA10, and on the B of magnetic disc face on i-th magnetic track storage data be LBA1, LBA3, LBA5, LBA7, LBA9 and The data of LBA11, may thereby determine that the LBA of the magnetic track being positioned at same cylinder in described N number of magnetic disc face is patrolled with one Collecting block address is that unit carries out intersection addressing.
Next step S902, in this step, the N number of data of parallel reading from described N number of digital independent magnetic track are performed, And obtain by described N number of data according to the reading data of the sequential combination of described LBA, wherein, described N number of number It is positioned at same cylinder according to reading magnetic track, and is the initial read magnetic track of described N number of data.
In specific implementation process, the described intersection addressing mode obtained according to step S901, it may be determined that described N number of number According to the order of LBA, such that it is able to described N number of data are combined according to the order of described LBA, from And from described mechanical hard disk, read out described reading data.
For example, with reference to Figure 10 and Fig. 4 a, described reading data counterlogic block address to be detected be LBA0, LBA1, During LBA2 and LBA3, obtaining described N number of digital independent magnetic track by formula 1 is 7 magnetic tracks on the second magnetic disc face 34 and the first magnetic 7 magnetic tracks on dish face 33, and described intersection addressing mode be LBA be the odd-even interleaving coding of unit, by magnetic head 0 positions 7 magnetic tracks to the first magnetic disc face 33 and 7 magnetic tracks positioned by magnetic head 1 to the second magnetic disc face 34, and magnetic head 0 reads The data that read Part I corresponding for LBA0 with LBA2 read Part II corresponding for LBA1 with LBA3 and read data with magnetic head 2, And by the first reading channel 901 to described Part I reading decoding data, and right by the second read/write channel 902 Described Part II reads decoding data, then, reads data according to described Part I and described Part II reads The order of the LBA of data, reconfigures described Part I in buffer 903 and reads data and described second Divide and read data, thus obtain reading data 904.
Wherein, it is 1001 at binary data corresponding for LBA0, when binary data corresponding for LBA2 is 0101, then described It is 1,001 0101 that Part I reads data, is 1110 at binary data corresponding for LBA1, the binary data that LBA3 is corresponding When being 0110, it is 1,110 0110 that the most described Part II reads data, obtain according to the order of described LBA described in Reading data is 1,001 1,110 0,101 0110.
In actual application, the specific works of described mechanical hard disk is as follows:
Described mechanical hard disk detects when needing to read data, obtains the LBA parameter of described reading data, based on LBA parameter, determines the N number of digital independent magnetic track for storing described reading data, based on described N number of number from N number of magnetic disc face According to reading magnetic track, obtain the N number of magnetic head corresponding with described N number of digital independent magnetic track, then by described N number of magnetic head location to described On N number of digital independent magnetic track, control described N number of magnetic head and carry out parallel read operations, thus obtain described N number of data, according to really Fixed described N number of magnetic disc face is positioned at the intersection addressing mode of the LBA of the magnetic track of same cylinder, by described N number of data According to the sequential combination of described LBA, thus obtain described reading data.
Owing to, described N number of digital independent magnetic track is positioned at same cylinder, and it is the initial read magnetic track of described N number of data, Make the reading described reading data that described N number of magnetic head can be complete, reduce the probability of described reading corrupt data.
Wherein, the relative error in described N number of magnetic disc face is less than threshold value.
Concrete, after determining the described N number of magnetic head corresponding with described N number of digital independent magnetic track, first pass through voice coil loudspeaker voice coil Head arm is carried out seeking, then carried out by the micro machine being arranged on each magnetic head in described N number of magnetic head for the first time by motor Second time tracking, when described threshold value is 0.5 millimeter, by the addressing of described N number of magnetic head location to described N number of digital independent magnetic track Time is 10 microseconds, and is 0.8 millimeter in described threshold value, by described N number of magnetic head location seeking to described N number of digital independent magnetic track The location time is 15 microseconds, causes when described threshold value is 0.5 millimeter, and described mechanical hard disk can read behaviour faster and then parallel Make, thus improve the data reading speed of described mechanical hard disk.
Wherein, after by N number of data described in described N number of head read, by least in described mechanical hard disk Individual read/write channel receives the described N number of data sent from described N number of magnetic head, and to described N number of decoding data, it is thus achieved that solve Described N number of data after Ma.
In specific implementation process, when at least one read/write channel described is N number of read/write channel, hard by described machinery The 3rd preamplifier in dish gates the N number of magnetic head passage corresponding with described N number of magnetic head simultaneously, controls described N number of read-write letter The data sent from corresponding magnetic head are received in road, and wherein, one end of described 3rd preamplifier is electrically connected with the plurality of magnetic Each magnetic head in Tou, the other end is electrically connected with each read/write channel in described N number of read/write channel.
Concrete, when at least one read/write channel described is N number of read/write channel, described mechanical hard disk can control described the Three preamplifiers can gate the N number of magnetic head passage corresponding with described N number of magnetic head simultaneously, to be connect by described N number of magnetic head passage Receive the described N number of data from described N number of magnetic head, and control described N number of data corresponding read/write channel of entrance, then to described N number of decoding data, to obtain decoded N number of data, so that described electronic equipment is capable of identify that described decoded N Individual data.
For example, with reference to Fig. 4 a and Fig. 4 b, include 5 magnetic tracks on the first magnetic disc face 33, the 3rd magnetic disc face at described N number of magnetic track 5 magnetic tracks on 35 and 5 magnetic tracks on the 4th magnetic disc face 36, and described N number of read/write channel be the first read/write channel, second read-write letter When road and third reading write-channel, described mechanical hard disk can control described 3rd preamplifier and gate the A corresponding with a magnetic head simultaneously Magnetic head passage, and the C magnetic head passage corresponding with c magnetic head, and the D magnetic head passage corresponding with d magnetic head, before controlling the described 3rd Put amplifier and receive 3 data sent from a, c and d magnetic head, and described 3 data are transmitted separately to described first, second With third reading write-channel, wherein, the data that each read/write channel receives all differ, and the most described first read/write channel receives The data that a magnetic head sends, described second read/write channel receives the data that b magnetic head sends, and described third reading write-channel receives c The data that magnetic head sends, so so that described mechanical hard disk can control described N number of read/write channel and receive described N number of data, Then by the channel decoder of described N number of read/write channel to described N number of decoding data, it is thus achieved that decoded N number of data.
When at least one read/write channel described is N number of read/write channel, can gate corresponding with described N number of magnetic head simultaneously N number of magnetic head passage, and make described N number of magnetic head can simultaneously carry out data read operation, and control described N number of read/write channel and connect Receive the described N number of data sent from described N number of magnetic head, and existing mechanical hard disk can only control one in a period of time content Magnetic head is read, and so, uses the technical scheme of the application, it is possible to the effective digital independent speed improving mechanical hard disk Degree so that described data reading speed matches with the high-speed computation speed of CPU, thus improves the integral operation of computer Energy.
In specific implementation process, when at least one read/write channel described is second read/write channel, use timesharing Multiplexing, N number of second analog-digital converter controlled in described mechanical hard disk gates the N number of magnetic head corresponding with described N number of magnetic head simultaneously Passage, wherein, each second analog-digital converter in described N number of second analog-digital converter is at least electrically connected with described N number of magnetic A magnetic head in Tou；By the second buffer inputs in described mechanical hard disk from described N number of magnetic head send described N number of Coded data, wherein, one end of described second buffer is electrically connected with described second read/write channel, and the other end is electrically connected with N number of Second analog-digital converter；Control described second read/write channel from described second buffer, read described N number of data.
Wherein, described second analog-digital converter and described first analog-digital converter are identical or different analog-digital converter.
For example, with reference to Fig. 5 c and Fig. 4 a, a magnetic head corresponding A magnetic head passage, b magnetic head correspondence B magnetic head passage, c magnetic head correspondence C Magnetic head passage, d magnetic head correspondence D magnetic head passage, e magnetic head correspondence E magnetic head passage, f magnetic head correspondence F magnetic head passage, described reading During the second data, due to 10 magnetic tracks on the corresponding first magnetic disc face 33 of Part I data that described second packet contains, and Comprise 10 magnetic tracks on the corresponding 5th magnetic disc face 37 of Part II data, may thereby determine that described M magnetic head is a magnetic head 54 He E magnetic head 55.
Wherein, a magnetic head 54 is positioned on 10 magnetic tracks to the first magnetic disc face 33, and e magnetic head 55 is positioned to the 5th magnetic On 10 magnetic tracks on dish face 37, control a magnetic head 54 and e magnetic head 55 and be read simultaneously, control the described of a magnetic head 54 reading Part I data are converted from analog into the first digital signal by the first analog-digital converter 52, and control simultaneously The described Part II data that e magnetic head 55 reads are converted from analog into the second numeral by the first analog-digital converter 53 Signal, thus the first buffer 51 will be made can be simultaneously received described first digital signal and described second digital signal, When described first, second digital signal stores in the first buffer 51, the first read/write channel 50 can read described parallel First, second digital signal, is then decoded described first, second data signal, according to the described N number of magnetic disc face determined In be positioned at the intersection addressing mode of LBA of magnetic track of same cylinder, by described N number of data according to described logical block ground The sequential combination of location, thus obtain described reading data.
The description of the embodiment of the present invention is referred to the description of embodiment of the method, does not repeats them here.
In the embodiment of the present invention, owing to technical scheme is to determine N number of digital independent from described N number of magnetic disc face After magnetic track, the N number of data of parallel reading from described N number of digital independent magnetic track, and same according to described N number of magnetic disc face is positioned at Described N number of data are entered by the intersection addressing mode of the LBA of the magnetic track of cylinder according to the order of described LBA Row combination, thus obtain described reading data, and existing mechanical hard disk only has a magnetic head number within the same time period According to read operation, and the technical program can there is within the same time period multiple magnetic head carry out data read operation, it is thus possible to Enough it is effectively improved the data reading speed of mechanical hard disk.
Embodiment five
The embodiment of the present invention five proposes a kind of mechanical hard disk, and described mechanical hard disk has multiple disk, wherein, described Multiple disks can use plastic material, aluminum and glass material as substrate, expect the most again substrate and aluminum material substrate and Coat magnetic material in frit base glass to constitute.
Seeing Figure 11, this mechanical hard disk includes:
Second magnetic track determines unit 110, for determining N number of digital independent magnetic track from N number of magnetic disc face, and determines described N Being positioned at the intersection addressing mode of the LBA of the magnetic track of same cylinder in individual magnetic disc face, N is the integer not less than 2；
Data-reading unit 111, determines, from the second magnetic track, described N number of digital independent that unit 110 sends for receiving Magnetic track and described intersection addressing mode, the N number of data of parallel reading from described N number of digital independent magnetic track, it is thus achieved that by described N number of number According to the reading data of the sequential combination according to described LBA, wherein, described N number of digital independent magnetic track is positioned at same Cylinder, and be the initial read magnetic track of described N number of data.
Wherein, when detecting that described reading data are read from the multiple disks of institute by needs, from the plurality of magnetic disc Sheet is searched the N number of magnetic disc face for storing described reading data, then determines for storing described from described N number of magnetic disc face Read described N number of digital independent magnetic track of data, and determine the logical block of the magnetic track being positioned at same cylinder in described N number of magnetic disc face The intersection addressing mode of address.
It is also preferred that the left whether the relative error in described N number of magnetic disc face is less than threshold value.
It is also preferred that the left when N=2, described N number of magnetic disc face may be located on same disk, it is also possible to is positioned at different magnetic Video disc.
It is also preferred that the left the second magnetic track determines unit 110, specifically for determining that described intersection addressing mode is described N number of magnetic disc The LBA of the magnetic track being positioned at same cylinder in face carries out the mode of intersection addressing in units of a LBA, also Be the LBA of the magnetic track being positioned at same cylinder in described N number of magnetic disc face be that unit is entered with N/mono-LBA The mode of row intersection addressing.
Wherein, the second magnetic track determine unit 110 after determining described intersection addressing mode, according to described intersection addressing side Formula, determines the order of LBA corresponding to described N number of data, so that described N number of data are according to described LBA Order be combined, thus obtain described reading data, wherein, described mechanical hard disk reads the embodiment party of described reading data Formula with specific reference to the embodiment implemented in four, succinct for description, just repeat no more at this.
The description of the embodiment of the present invention is referred to the description of embodiment of the method, does not repeats them here.
In the embodiment of the present invention, owing to technical scheme is to determine N number of digital independent from described N number of magnetic disc face After magnetic track, the N number of data of parallel reading from described N number of digital independent magnetic track, and same according to described N number of magnetic disc face is positioned at Described N number of data are entered by the intersection addressing mode of the LBA of the magnetic track of cylinder according to the order of described LBA Row combination, thus obtain described reading data, and existing mechanical hard disk only has a magnetic head number within the same time period According to read operation, and the technical program can there is within the same time period multiple magnetic head carry out data read operation, it is thus possible to Enough it is effectively improved the data reading speed of mechanical hard disk.
Embodiment six
The embodiment of the present invention six proposes a kind of mechanical hard disk, sees Figure 12, and this mechanical hard disk includes:
Memorizer 120, is used for storing data；
Controller 121, when determining the reading data needing to read from memorizer 120, for true from N number of magnetic disc face Fixed N number of digital independent magnetic track, and determine that the intersection of the LBA of the magnetic track being positioned at same cylinder in described N number of magnetic disc face is compiled Location mode, N is the integer not less than 2, and reads N number of data for parallel from described N number of digital independent magnetic track, it is thus achieved that by Described N number of data are according to the described reading data of the sequential combination of described LBA, and wherein, described N number of data are read Take magnetic track and be positioned at same cylinder, and be the initial read magnetic track of described N number of data.
Wherein, storage 120 is multiple disks of described mechanical hard disk, and further, controller 121 e.g. processes core The electronic equipment such as sheet, single-chip microcomputer.
Wherein, when detecting that described reading data are read from the multiple disks of institute by needs, from the plurality of magnetic Video disc is searched the N number of magnetic disc face for storing described reading data, then determines for storing from described N number of magnetic disc face State the described N number of digital independent magnetic track reading data, and determine the logic of the magnetic track being positioned at same cylinder in described N number of magnetic disc face The intersection addressing mode of block address.
Further, the plurality of disk can use plastic material, aluminum and glass material as substrate, then Expect that coating magnetic material in substrate and aluminum material substrate and frit base glass is constituted again.
It is also preferred that the left whether the relative error in described N number of magnetic disc face is less than threshold value.
It is also preferred that the left when N=2, described N number of magnetic disc face may be located on same disk, it is also possible to is positioned at different magnetic Video disc.
It is also preferred that the left controller 121, specifically for determining that described intersection addressing mode is to be positioned in described N number of magnetic disc face together The LBA of the magnetic track of one cylinder carries out the mode of intersection addressing in units of a LBA, or described N number of The LBA of the magnetic track being positioned at same cylinder in magnetic disc face is that unit carries out intersection addressing with N/mono-LBA Mode.
Wherein, controller 121, after determining described intersection addressing mode, according to described intersection addressing mode, determines institute State the order of LBA corresponding to N number of data, so that described N number of data are carried out according to the order of described LBA Combination, thus obtains described reading data, wherein, described mechanical hard disk read the embodiment of described reading data with specific reference to Implement the embodiment in four, succinct for description, just repeat no more at this.
The description of the embodiment of the present invention is referred to the description of embodiment of the method, does not repeats them here.
In the embodiment of the present invention, owing to technical scheme is to determine N number of digital independent from described N number of magnetic disc face After magnetic track, the N number of data of parallel reading from described N number of digital independent magnetic track, and same according to described N number of magnetic disc face is positioned at Described N number of data are entered by the intersection addressing mode of the LBA of the magnetic track of cylinder according to the order of described LBA Row combination, thus obtain described reading data, and existing mechanical hard disk only has a magnetic head number within the same time period According to read operation, and the technical program can there is within the same time period multiple magnetic head carry out data read operation, it is thus possible to Enough it is effectively improved the data reading speed of mechanical hard disk.
It will be understood by those skilled in the art that embodiments of the invention can be provided as method, device (equipment) or computer Program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or combine software and hardware aspect The form of embodiment.And, the present invention can use at one or more meters wherein including computer usable program code The upper computer journey implemented of calculation machine usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) The form of sequence product.
The present invention is with reference to method, device (equipment) and the flow chart of computer program according to embodiments of the present invention And/or block diagram describes.It should be understood that can be by each flow process in computer program instructions flowchart and/or block diagram And/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided to refer to Order arrives the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce One machine so that the instruction performed by the processor of computer or other programmable data processing device is produced and is used for realizing The device of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and computer or other programmable data processing device can be guided with spy Determine in the computer-readable memory that mode works so that the instruction being stored in this computer-readable memory produces and includes referring to Make the manufacture of device, this command device realize at one flow process of flow chart or multiple flow process and/or one square frame of block diagram or The function specified in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that at meter Perform sequence of operations step on calculation machine or other programmable devices to produce computer implemented process, thus at computer or The instruction performed on other programmable devices provides for realizing at one flow process of flow chart or multiple flow process and/or block diagram one The step of the function specified in individual square frame or multiple square frame.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation Property concept, then can make other change and amendment to these embodiments.So, claims are intended to be construed to include excellent Select embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof Within, then the present invention is also intended to comprise these change and modification.

Claims (18)

1. a method for data write, is applied to mechanical hard disk, it is characterised in that described method includes:
From M magnetic disc face, determine M data write magnetic track, wherein, described M magnetic disc face is positioned at the magnetic track of same cylinder The addressing mode of LBA is for intersecting addressing, and M is the integer not less than 2；
Carry out described head arm seeking for the first time by being used for the voice coil motor driving head arm, described head arm and M magnetic Head is connected；
Carry out second time by the micro machine being arranged on each magnetic head in described M magnetic head to seek, described M magnetic head is divided Ding Wei be to described M data write magnetic track；
The data writing described mechanical hard disk are written in parallel to described M data write magnetic according to the order of described LBA Road, wherein, described M data write magnetic track is positioned at same cylinder, and is originally written into magnetic track for described data.
2. the method for claim 1, it is characterised in that the radial direction of the magnetic track at same cylinder in described M magnetic disc face Relative error is less than threshold value.
3. method as claimed in claim 1 or 2, it is characterised in that when M=2, described M magnetic disc face is positioned at same magnetic disc On sheet.
4. method as claimed in claim 3, it is characterised in that be positioned at the patrolling of magnetic track of same cylinder in described M magnetic disc face The addressing mode collecting block address addresses for intersecting, and specifically includes:
It is positioned at the addressing mode of LBA of the magnetic track of same cylinder for intersect in units of a LBA Addressing.
5. method as claimed in claim 3, it is characterised in that be positioned at the patrolling of magnetic track of same cylinder in described M magnetic disc face The addressing mode collecting block address addresses for intersecting, and specifically includes:
It is positioned at the addressing mode of LBA of the magnetic track of same cylinder for being that unit is carried out with M/mono-LBA Intersect and address.
6. method as claimed in claim 1 or 2, it is characterised in that the described data of described mechanical hard disk that will write are according to institute The order stating LBA is written in parallel to described M data write magnetic track, specifically includes:
By the verification data of the data of mechanical hard disk described in mechanical hard disk data described in said write and said write according to described The order of LBA is written in parallel to described M data write magnetic track.
7. a mechanical hard disk, it is characterised in that described mechanical hard disk includes:
First magnetic track determines unit, for determining M data write magnetic track, wherein, described M magnetic disc face from M magnetic disc face In be positioned at same cylinder magnetic track LBA addressing mode for intersect addressing, M is the integer not less than 2；
First tracking unit, for by seeking for driving the voice coil motor of head arm described head arm to be carried out for the first time, Described head arm is connected with M magnetic head；
Second tracking unit, seeks for carrying out second time by the micro machine being arranged on each magnetic head in described M magnetic head Road, positions described M magnetic head respectively to described M data write magnetic track；
Data write unit, determines, from described first magnetic track, described M the data write magnetic track that unit sends for receiving, will The data writing described mechanical hard disk are written in parallel to described M data write magnetic track according to the order of described LBA, its In, described M data write magnetic track is positioned at same cylinder, and is originally written into magnetic track for described data.
8. mechanical hard disk as claimed in claim 7, it is characterised in that described first magnetic track determines unit, specifically for controlling The diametrically error of the magnetic track at same cylinder in described M magnetic disc face is less than threshold value.
9. as claimed in claim 7 or 8 mechanical hard disk, it is characterised in that described first magnetic track determines unit, specifically for During M=2, control described M magnetic disc face and be positioned on same disk.
10. mechanical hard disk as claimed in claim 9, it is characterised in that described first magnetic track determines unit, specifically for controlling Described M magnetic disc face is positioned at the addressing mode of LBA of the magnetic track of same cylinder in units of a LBA Carry out intersecting and address.
11. mechanical hard disks as claimed in claim 9, it is characterised in that described first magnetic track determines unit, specifically for controlling Described M magnetic disc face is positioned at the addressing mode of LBA of the magnetic track of same cylinder with M/mono-LBA Carry out intersecting for unit and address.
12. mechanical hard disks as claimed in claim 7 or 8, it is characterised in that described data write unit, specifically for writing Enter suitable according to described LBA of the verification data of mechanical hard disk data described in described mechanical hard disk data and said write Sequence is written in parallel to described M data write magnetic track.
13. 1 kinds of mechanical hard disks, it is characterised in that described mechanical hard disk includes:
Memorizer, for caching the data writing described mechanical hard disk；
Controller, is used for: determines M data write magnetic track from M magnetic disc face, wherein, is positioned at same in described M magnetic disc face The addressing mode of the LBA of the magnetic track of cylinder is for intersecting addressing, and M is the integer not less than 2；Drive magnetic head by being used for Described head arm is carried out seeking for the first time by the voice coil motor of arm, and described head arm is connected with M magnetic head；Described by being arranged on The micro machine on each magnetic head in M magnetic head carries out second time and seeks, and positions described M magnetic head to described M number respectively According to write magnetic track；The data of mechanical hard disk described in said write are written in parallel to described M according to the order of described LBA Individual data write magnetic track, wherein, described M data write magnetic track is positioned at same cylinder, and being originally written into for described data Magnetic track.
14. mechanical hard disks as claimed in claim 13, it is characterised in that described controller, specifically for controlling described M magnetic The diametrically error of the magnetic track at same cylinder in dish face is less than threshold value.
15. mechanical hard disks as described in claim 13 or 14, it is characterised in that described controller, specifically for when M=2, Control described M magnetic disc face to be positioned on same disk.
16. mechanical hard disks as claimed in claim 15, it is characterised in that described controller, specifically for controlling described M magnetic The addressing mode of the LBA being positioned at the magnetic track of same cylinder in dish face is intersected in units of a LBA Addressing.
17. mechanical hard disks as claimed in claim 15, it is characterised in that described controller, specifically for controlling described M magnetic The addressing mode of the LBA being positioned at the magnetic track of same cylinder in dish face is that unit is carried out with M/mono-LBA Intersect and address.
18. mechanical hard disks as described in claim 13 or 14, it is characterised in that described controller, specifically for writing institute State suitable according to described LBA of the verification data of the data of mechanical hard disk described in the data of mechanical hard disk and said write Sequence is written in parallel to described M data write magnetic track.
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