CN107257997B - Method and record system for stacked tile type magnetic recording - Google Patents
Method and record system for stacked tile type magnetic recording Download PDFInfo
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- CN107257997B CN107257997B CN201480083702.9A CN201480083702A CN107257997B CN 107257997 B CN107257997 B CN 107257997B CN 201480083702 A CN201480083702 A CN 201480083702A CN 107257997 B CN107257997 B CN 107257997B
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
Abstract
The present invention relates to system is recorded for a kind of write method of the stacked tile type magnetic recording theory for the hard disk drive including multiple magnetic tracks, a kind of reading method and a kind of stacked tile type, wherein arranging the write-in position of a byte in eight adjacent tracks.
Description
Technical field
The present invention relates to the fields of the main stacked tile type magnetic recording in hard disk recording systems form, and it particularly relates to
It is a kind of to be used for for the write method of the stacked tile type magnetic recording theory for hard disk drive, a kind of corresponding reading method and one kind
The stacked tile type of hard disk drive records system.
Background technique
2013/0083416 A1 of US describes a kind of magnetic data storage system comprising bit-patterned magnetic medium, wherein adjacent
The center of position in data track is not located on the bridging line in cross track direction, the width of the magnetic head with writer element
Greater than width of the data track on the track width direction for being suitable for being written data.
2005/0068664 A1 of US describes a kind of system, wherein writing data into hard disk using stacked tile type write-in principle
Driver, that is, partly override each data track when the data track that write-in is connected directly.Two or more numbers that are connected
Recorded trace is established according to magnetic track, and recorded trace stores the data from AV file.Depending on radial position of the magnetic track on disk
With the skew of writing component, the internal diameter towards or away from disk is sequentially written in magnetic track.
2011/0075292 A1 of US describes a kind of journaling file J of disc driver for being written with stacked tile type
System.
2012/099216 A1 of US describes a kind of storage architecture for bit-patterned medium, uses elimination recorded trace
Both with stacked tile type magnetic recording.Hard disk drive includes the disk with bit-patterned medium, and the bit-patterned medium has
Multiple data tracks, the data track are eliminated in recorded trace mode, stacked tile type mode and unallocated space at least with having
One framework webpage arrangement.Actuator has the magnetic head for writing data to the data track of bit-patterned medium.Control
System monitoring redistributes framework webpage and matches it again from recorded trace mode, stacked tile type mode or unallocated space is eliminated
It is set to not same in elimination recorded trace mode, stacked tile type mode or unallocated space.
Summary of the invention
The object of the present invention is to provide a kind of improved technologies for the stacked tile type magnetic recording for hard disk drive.
This purpose is realized by the feature of independent claims.Other form of implementation passes through dependent claims, explanation
Book and schema are clearly visible.
According in a first aspect, it is a kind of for for include multiple magnetic tracks hard disk drive stacked tile type magnetic recording theory
Write method, wherein arranging the write-in position of a byte in eight adjacent tracks of the multiple magnetic track, the write method includes
Following steps: the write operation of initializing sector, and write operation data to be written will be initialized and be transmitted in the form of byte stream
In interface cache module;Separate at least one row from the byte stream of transmitting by means of writing multiplexer module;And it borrows
Help Magnetic Disk Controler module and at least one separation position row is written.
Design of the invention is provided by a kind of method, and the method uses stacked tile type Magnetographic Technology, it is therefore an objective to by
In the maximum possible for obtaining storage density using stacked tile type magnetic recording (shingled magnetic recording, SMR) principle
Increase, and provides and make it possible using the random read-write operation in traditional approach for stacked tile type magnetic recording theory situation
Write method.
In addition, the present invention allows to provide a kind of write method, make in the case where not appreciably affecting performance using ext4,
The widely used file system such as xfs and other systems is possibly realized for stacked tile type driver situation, and the present invention can
There is provided by means of improve a DataNode ability come improve distributed file system (distributed file system,
DFS the chance of performance), raising ability mean in the case where that need not transmit data by network in the more data of processing locality
Chance.
The central scope of proposed invention is the principle for changing the data in disk track and indicating.In general, data byte
It is arranged in proper order one by one in a magnetic track.Such as, it is proposed that the position of a byte is arranged in eight adjacent overlapping magnetic tracks
Between.It will need to write in eight adjacent overlapping magnetic tracks when as a result, it is necessary to which such as 512 byte-sizeds sector is written
Enter.Each area SMR containing eight adjacent overlapping magnetic tracks is terminated with interval, and the interval prevents from overriding next area SMR or auxiliary
Magnetic assist road or multiple magnetic tracks.
The present invention advantageously provides a kind of write method, the write method has universal property, and can be easily in HDD
Hardware level implement and need not upper software layer consider SMR principle characteristic.
In addition, invention advantageously provides can be easy in the case where operating principle based on reading in not significant modification HDD
The asymmetric nature of write operation performance implements the chance of random writing operations.Write-in is executed by being written sequentially to eight magnetic tracks
The operation of one sector.However, read operation is executed also by being read out from eight magnetic tracks, it is possible that can make in magnetic head
Magnetic track is concurrently read in the case where the technology read with parallel tracks.
The present invention is supplemented by the caching technology of read-write operation as a result,.There is a possibility that being based on cache buffer
Static random access memory SRAM building, based on gain the name in NAND gate, negate after with (Negated AND) or with it is non-with it is non-
Flash memory building, or based on the phase transition storage (Phase-Change as nonvolatile RAM type
Memory, PCM) memory and construct.
The present invention further comprises following advantages:
Write method according to the present invention is provided by means of using stacked tile type magnetic recording (SMR) principle to obtain storage density most
Big increased chance.
Write method according to the present invention, which is provided, uses widely used file system in the case where not appreciably affecting performance
(ext4, xfs etc.) is used for the chance of stacked tile type driver situation.
Write method according to the present invention provides that (raising ability means need not by means of the ability that improves a DataNode
In the more multidata chance of processing locality in the case where by network transmitting data) Lai Gaijin distributed file system (DFS)
The chance of performance.
In the first possible form of implementation according to the write method of first aspect, by means of write buffer module caching at least one
A row.
The advantages of write buffer module first is that its allow easily and rapidly data processing.
Second in the first form of implementation according to first aspect or the write method also according to first aspect may implement
In form, it is repeated eight times for eight adjacent tracks and separates at least one capable step and at least one separation position row is written
Step.
This advantageously provides complete bytes block to the no write de-lay of hard disk.
The side of writing of any form of implementation in the foregoing embodiments also according to first aspect or according to first aspect
In the possible form of implementation of the third of method, sector is initialized as the sector-size of 512 bytes or is initialized as the fan of 1024 bytes
Area's size is initialized as the sector-size of 2048 bytes or is initialized as the sector-size of any higher power of 2 bytes.
This advantageously provides sector-size the advantages of being mapped to shared allocated size in the form measured.
The method of any form of implementation in the foregoing embodiments also according to first aspect or according to first aspect
The 4th the write-in position of a byte may be written according to stacked tile type magnetic recording theory in form of implementation.
This advantageouslys allow for providing the compatibility with current magnetic head and medium manufacture and hard drive data framework.
According to second aspect, the present invention relates to a kind of stacked tile type magnetic for for the hard disk drive including multiple magnetic tracks
The reading method of record, wherein in eight adjacent tracks arrange a byte write-in position, the reading method the following steps are included:
The read operation of initializing sector;At least one fan for separating position row including at least one is read by means of Magnetic Disk Controler module
Area, and at least one reading position row is transmitted to read buffer module, wherein the step of reading at least one sector is for difference
Track operation;By means of reading at least two rows of multiplexer module joint reading to form byte stream;And by word
Throttling is transmitted in interface cache module.
In the first possible form of implementation according to the reading method of second aspect, reading is repeated eight times for eight adjacent tracks
The step of taking at least one sector.
Second in the first form of implementation according to second aspect or the reading method also according to second aspect may implement
In form, sector is initialized as the sector-size of 512 bytes or is initialized as the sector-size of 1024 bytes or is initialized as
The sector-size of 2048 bytes or be initialized as 2 any higher power size sector-size.
The reading side of any form of implementation in the foregoing embodiments also according to second aspect or according to second aspect
In the possible form of implementation of the third of method, byte stream is transmitted from hard disk drive by means of I/O interface module.
The reading side of any form of implementation in the foregoing embodiments also according to second aspect or according to second aspect
In the possible form of implementation of the 4th of method, the write-in position of a byte is written according to stacked tile type magnetic recording theory.
According to the third aspect, the stacked tile type that the present invention relates to a kind of for including the hard disk drive of multiple magnetic tracks records system
System, wherein arranging the write-in position of a byte in eight adjacent tracks, the stacked tile type record system includes: interface caching mould
Block is designed as byte stream of the caching for write-read operation;Caching is designed as to read the read buffer module of position row and be designed as delaying
Deposit the write buffer module that position row is not written;Be designed as position row being joined to the reading multiplexer module of byte stream and be designed as from
Separate at least one in transmitting byte stream and capable writes multiplexer module;And Magnetic Disk Controler module, be designed as from
The single magnetic track of hard disk drive reads position row and/or the single magnetic track that position row is written to hard disk drive.
In the first possible form of implementation for recording system according to the stacked tile type of the third aspect, sector is initialized as 512
The sector-size of byte is initialized as the sector-size of 1024 bytes or is initialized as the sector-size or initial of 2048 bytes
Turn to the sector-size of 2 any higher power size.
In the second possibility for recording system according to the third aspect or according to the stacked tile type of the first form of implementation of the third aspect
In form of implementation, interface cache module may be connected to I/O interface module, and byte stream by means of I/O interface module from hard disk
Driver transmitting.
In the third possibility for recording system according to the third aspect or according to the stacked tile type of any form of implementation of the third aspect
In form of implementation, the write-in position of a byte is written according to stacked tile type magnetic recording theory.
According to fourth aspect, the present invention relates to it is a kind of include according to the third aspect or according to any implementation shape of the third aspect
The hard disk drive of the stacked tile type record system of formula.
In the first possible form of implementation for recording system according to the stacked tile type of fourth aspect, the sector of hard disk drive is big
It is small be 512 bytes or 1024 bytes or 2048 bytes or with 2 any higher power size.
Method, system and equipment described herein may be embodied as in digital signal processor DSP, microcontroller or appoints
Software what in its side processor, or the hardware circuit being embodied as in application-specific integrated circuit ASIC.
The present invention can be implemented in Fundamental Digital Circuit or computer hardware, firmware, software or combinations thereof, for example, real
It imposes on the available hardware of conventional mobile device or is exclusively used in the new hardware of processing approach described herein.
Detailed description of the invention
Specific embodiments of the present invention will be described in conjunction with the following drawings, in which:
Fig. 1 is shown for explaining the present invention carries out magnetic track expression according to stacked tile type magnetic recording theory on a hard disk drive
Schematic diagram;
Fig. 2 shows the schematic diagrames for explaining the present invention for carrying out data expression on a hard disk drive;
Fig. 3 shows the schematic diagram of the scheme for explaining the present invention for carrying out data write-in on a hard disk drive;
What Fig. 4 showed embodiment according to the present invention carries out data by stacked tile type magnetic recording theory on a hard disk drive
The schematic diagram of the scheme of write-in;
Fig. 5 is shown according to a further embodiment of the invention by area's concept of stacked tile type magnetic recording on a hard disk drive
Carry out the schematic diagram of the scheme of data write-in;
Fig. 6 shows the stacked tile type for the hard disk drive including multiple magnetic tracks according to a further embodiment of the invention
The schematic diagram of record system;
Fig. 7 shows the reduction procedure of the write method for stacked tile type magnetic recording according to a further embodiment of the invention
Schematic diagram;
Fig. 8 shows the detailed protocol of the write method for stacked tile type magnetic recording according to a further embodiment of the invention
Schematic diagram;
Fig. 9 shows the write method for the stacked tile type magnetic recording for hard disk drive of embodiment according to the present invention
Flow chart;
Figure 10 shows the reading method for the stacked tile type magnetic recording for hard disk drive of embodiment according to the present invention
Flow chart;
Figure 11 shows the reading method for the stacked tile type magnetic recording for hard disk drive of embodiment according to the present invention
Flow chart;And
Figure 12 shows the write method for the stacked tile type magnetic recording for hard disk drive of embodiment according to the present invention
Flow chart.
Specific embodiment
In the drawings, same reference numeral indicates identical or equivalence element.It is further noted that not all attached drawing is all pressed
Ratio is drawn.
It is carried out hereinafter with reference to the attached drawing technical solution in the embodiment of the present invention in the embodiment of the present invention clear, complete
Ground description.
Obviously, described embodiment is only some embodiments of the present invention, instead of all the embodiments.Based on this hair
Bright embodiment, one of ordinary skill in the art obtain all other under the premise of without any creative effort
Embodiment belongs in protection scope of the present invention.
Fig. 1 is shown for explaining the present invention carries out magnetic track expression according to stacked tile type magnetic recording theory on a hard disk drive
Schematic diagram.
Stacked tile type magnetic recording is higher to realize by increasing the write-in bit density in the recording medium for including multiple sectors 120
Storage capacity.Due to the magnetocrystalline grain number purpose logarithm in medium signal-to-noise ratio (signal to noise ratio, SNR) and position at
Direct ratio, that is, directly proportional to the magnetocrystalline grain number purpose logarithm in the volume for storing position thereon, it is therefore necessary to reduce medium grain size
To improve Areal Density.However, in order to avoid given superparamagnetic limitation and in order to guarantee medium thermal stability, it is necessary in crystal grain
Increase the coercivity of medium while size reduces, coercivity is after the intensity of magnetization of sample has been driven to saturation
The intensity of externally-applied magnetic field needed for the intensity of magnetization of the material is reduced to zero.
The increase of coercivity needs to cause the stronger magnetic field 9-1 of interference again.This can be by using " turning is written
Device " magnetic head 9 is realized, the overlapping of disk track 110-1,110-2 are actually resulted in.Magnetic track 110 can be in current goal magnetic track
110-1 and being written in magnetic track 110-2 is distinguished, and magnetic head 9, which positions, to be simultaneously bonded on current goal magnetic track 110-1.Although still
It may read at random, but such write-in can not be used in the case where not incurring the loss of data in adjacent track
Device carries out the write-in of any physical sector position of disk, as shown in fig. 1.The black arrow instruction hard disk on top is relative to magnetic
The arrow of first 9 movement, two black normal alignments of bottom end indicates two write-in directions.
Fig. 2 shows the schematic diagrames for explaining the present invention for carrying out data expression on a hard disk drive.
For example, hard disk drive HDD contains one group of disc 100.Each surface of disc 100 is divided into one group of magnetic track
110.And finally, each magnetic track 110 is divided into one group of equal-sized sector 120 containing data, as shown in Figure 2.
Data may be considered the binary stream of byte.
Fig. 3 shows the schematic diagram of the scheme for explaining the present invention for carrying out data write-in on a hard disk drive.
In Fig. 3, the interval between every two adjacent track 110 is shown.This interval protect next adjacent track 110 with
It prevents from being written during a magnetic track 110 before write.Each sector 120 is the binary stream containing the byte to follow one another,
As shown in Figure 3.
According to one embodiment of present invention, write head 9 is during it is moved along magnetic track 110 such as the upper part of Fig. 3
In shown the byte of binary stream is written sequentially into sector 120.Each sector 120 is once to read or be written
Data a part, the visual angle of software layer in formation.
What Fig. 4 showed embodiment according to the present invention carries out data by stacked tile type magnetic recording theory on a hard disk drive
The schematic diagram of the scheme of write-in.
As shown in Figure 4, stacked tile type magnetic recording theory is the overlapping based on adjacent track 110-1,110-2.As a result, by
Storage density is obtained in the overlapping of adjacent track 110-1,110-2 to increase.The overlapping of magnetic track 110-1,110-2, which may cause, to be connect down
Adjacent track 110-1, the 110-2's come is not intended to override.
According to one embodiment of present invention, write method suggestion changes the storing data in magnetic track and indicates.That is, it is suggested
The position of a byte is distributed between eight adjacent overlapping magnetic tracks, as shown in Figure 4.
Fig. 5 is shown according to a further embodiment of the invention by area's concept of stacked tile type magnetic recording on a hard disk drive
Carry out the schematic diagram of the scheme of data write-in.
According to one embodiment of present invention, the stacked tile type magnetic recording theory as used in write method will use eight
A magnetic track is for being written a byte, because the position of byte writes in different adjacent tracks.This eight overlapping magnetic tracks are combined folded
In the SMRZ of tile style magnetic recording area.As shown in Figure 5, protection interval is arranged before and after each stacked tile type magnetic recording area.Institute
Stating interval protects next stacked tile type magnetic recording area or one or more auxiliary tracks not to be written.In two adjacent stacked tile type magnetic
The one or more auxiliary tracks 110 being aligned between the SMRZ of recording areas can be used for storing parity code or check and purpose
It is the data for checking or restoring in stacked tile type magnetic recording area.
Fig. 6 shows the stacked tile type for the hard disk drive including multiple magnetic tracks according to a further embodiment of the invention
The schematic diagram of record system.
The stacked tile type that the hard disk drive for including multiple magnetic tracks is shown in Fig. 6 records system, wherein adjacent at eight
The write-in position of a byte is arranged in magnetic track, the stacked tile type record system may include: interface cache module 1, read buffer mould
Block 2 reads multiplexer module 3, writes multiplexer module 4, write buffer module 5 and Magnetic Disk Controler module 6.
Interface cache module 1 can be designed as byte stream of the caching for write-read operation.
Read buffer module 2 can be designed as caching and read position row, and write buffer module 5 can be designed as caching and position is not written
Row.Reading multiplexer module 3 can be designed as position row being joined to byte stream, and writing multiplexer module 4 can be designed as
Separate at least one row from transmitting byte stream.
According to one embodiment of present invention, Magnetic Disk Controler module 6 can be designed as the single magnetic from hard disk drive
Read position row and/or the single magnetic track that position row is written to hard disk drive in road.
Magnetic Disk Controler module 6 can manage these basic modules, it is therefore an objective to realize read-write scheme as discussed above.
Interface cache module, read-write cache module and read-write multiplexer mould are used according to the writing scheme of stacked tile type magnetic recording theory
Block.The byte stream that interface buffer memory is used to be written and (not yet read).Multiplexer is for separating write-in stacked tile type magnetic recording
As the position row of byte stream in the magnetic track in area.Read-write cache is deposited before writing or after being read by Magnetic Disk Controler module 6
Storage space row.
According to one embodiment of present invention, stacked tile type record system can further comprise write head 9, the write head position
In on the magnetic track of the disc of disk 8.Write head 9, i.e. disk read-write magnetic head, are moved above disk sheet, and by the magnetic of disc
Field is converted into electric current (reading disk), or vice versa, convert the current to magnetic field (write-in disk).
According to one embodiment of present invention, interface cache module 1 also can store the byte stream for being written or reading,
Its function is the byte stream between interim storage I/O interface and the scheme of inside HDD.
According to one embodiment of present invention, it is connect in the case of reading by reading the output offer of multiplexer module 3
The input of mouth cache module 1, and pass through the byte stream from I/O interface in case of a write and the defeated of interface cache module 1 is provided
Enter.
According to one embodiment of present invention, interface caching is provided by the byte stream to I/O interface in the case of reading
The output of module 1, and in case of a write by providing interface cache module 1 to the byte stream for writing multiplexer module 4
Output.
According to one embodiment of present invention, multiplexer module 4 is write for separating write-in stacked tile type magnetic recording area
As the position row of byte stream in magnetic track, function is the separation position row from byte stream.
It writes the input of multiplexer module 4 to provide by the byte stream from interface caching 1, and its output is by writing
The position row of cache module 5 provides.
According to one embodiment of present invention, write buffer module 5 stores the position by 6 address period of Magnetic Disk Controler module
Row.Task by temporarily storing position row in 6 address period of Magnetic Disk Controler module provides the function of write buffer module 5.
By providing the input of write buffer module 5 from the position row for writing the separation of multiplexer module 4.It is arrived by the way that position row is written
Magnetic Disk Controler module 6 indicates the output of write buffer module 5.
According to one embodiment of present invention, 6 managing driver module 7 of Magnetic Disk Controler module and magnetic head 9, it is therefore an objective to complete
At the read-write scheme of planning.
According to one embodiment of present invention, the function of Magnetic Disk Controler module 6 is by means of 7 He of managing driver module
Magnetic head 9 come complete planning read-write scheme.
According to one embodiment of present invention, disk control is provided by the reading position from reading head 9 for reading situation
The input of device module 6 processed, and Magnetic Disk Controler module 6 is provided by the position row from write buffer module 5 for write-in situation
Input.
According to one embodiment of present invention, it is provided for reading situation by the reading position row from read buffer module 2
The output of Magnetic Disk Controler module 6, and the position of magnetic head 9 is directed toward to indicate Magnetic Disk Controler by writing address for write-in situation
The output of module 6.
According to one embodiment of present invention, read buffer module 2 stores the position during reading by Magnetic Disk Controler module 6
Row.The function of read buffer module 2 is provided by temporarily storing position row during Magnetic Disk Controler module 6 is read.
According to one embodiment of present invention, read buffer module 2 is provided by reading position row from Magnetic Disk Controler module 6
Input.Output is indicated by the preparation position row to multiplexer module 3.
According to one embodiment of present invention, multiplexer module 3 is read to be used to combine the magnetic from stacked tile type magnetic recording area
The position row that road is read.
The function of reading multiplexer module 3 is that position row is joined in byte stream.
Fig. 7 shows the reduction procedure of the write method for stacked tile type magnetic recording according to a further embodiment of the invention
Schematic diagram.
According to one embodiment of present invention, byte is stored in memory chip, it is therefore an objective to prepare the sector of such as 4KB
For being written, as shown in Figure 7.Then, separate position row using multiplexer.Firstly, on multiplexer spaced-apart locations #0
Position and form byte stream, for 4KB sector-size be 512 bytes.This row write enters the first magnetic track of stacked tile type magnetic recording area
In.Such separation and write operation are repeated for every eight positions in byte as a result,.
Fig. 8 shows the detailed protocol of the write method for stacked tile type magnetic recording according to a further embodiment of the invention
Schematic diagram.
According to one embodiment of present invention, byte of the write head 9 during it is moved along magnetic track in binary stream
Specific location on position is written, for example, position is written to the position #3 of the byte on Fig. 8 in it.As a result, initially, it needs for fan
Position is written in all bytes in area on the slot # 0 in the first magnetic track of stacked tile type magnetic recording area, and the position is by the right side of Fig. 8
Number mark.Then, it should be carried out for slot # 1 equal, as shown in Figure 8.Magnetic track 110 equally can be in current goal magnetic
Road 110-1 and it is written magnetic track 110-2 and to be written not being written in magnetic track 110-3 distinguishes, magnetic head 9, which positions, simultaneously to be engaged
On current goal magnetic track 110-1.Magnetic head 9 causes interference, is such as shown by magnetic field 9-1.
Fig. 9 shows the write method for the stacked tile type magnetic recording for hard disk drive of embodiment according to the present invention
Flow chart.
A kind of write method for the stacked tile type magnetic recording for the hard disk drive including multiple magnetic tracks, wherein at eight
In adjacent track arrange a byte write-in position, the write method the following steps are included:
As the first step of write method, the write operation of the initialization sector S1-1 is executed, and initialization write operation is waited for
The data of write-in are transmitted in interface cache module in the form of byte stream.
As the second step of write method, progress separates from the byte stream of transmitting by means of writing multiplexer module 4
At least one position row of S1-2.
As the third step of write method, carry out that at least one the separation position S1-3 is written by means of Magnetic Disk Controler module 6
Row.
Figure 10 shows the reading method for the stacked tile type magnetic recording for hard disk drive of embodiment according to the present invention
Flow chart.
A kind of reading method for the stacked tile type magnetic recording for the hard disk drive including multiple magnetic tracks, wherein at eight
In adjacent track arrange a byte write-in position, the reading method the following steps are included:
As the first step of the method for reading, the read operation of the sector (S2-1) is initialized.
As the second step of the method for reading, carry out reading (S2-2) by means of Magnetic Disk Controler module 6 including at least one
Separate at least one sector of position row, and at least one reading position row is transmitted to read buffer module 2, wherein reading (S2-2)
The step of at least one sector, is for different track operations.
As the third step of the method for reading, carry out combining (S2-3) reading at least by means of reading multiplexer module 3
Two position rows are to form byte stream.
As the four steps of the method for reading, byte stream is transmitted (S2-4) into interface cache module 1.
Figure 11 shows the reading method for the stacked tile type magnetic recording for hard disk drive of embodiment according to the present invention
Flow chart.
As the first step S4-1 of the method for reading, operating system OS, OS initiation reads at least one fan from hard disk drive
Area, for example, the sector of 4KB size.
As the second step S4-2 of the method for reading, #N magnetic of the hdd controller 6 from stacked tile type magnetic recording area SMRZ
Read 512 bytes in sector in road.
As the third step S4-3 of the method for reading, read buffer module 2 saves the reading fan transmitted from hard disk controller module 6
The reading position row in area.
As the four steps of the method for reading, for example, being repeated eight times second step S4-2 and third step S4-3, or eight are repeated
Any power.
As the 5th step S4-4 of the method for reading, reads the joint of multiplexer module 3 and read position row and by united byte
Stream is transmitted in interface cache module 1.
As the 6th step S4-5 of the method for reading, by means of I/O interface, that is, by means of interface cache module 1, from hard disk
The reading byte stream of driver transmitting 4KB size.
Figure 12 shows the write method for the stacked tile type magnetic recording for hard disk drive of embodiment according to the present invention
Flow chart.
As the first step S3-1 of write method, sector is written in hard disk drive by operating system OS initiation, described
Sector is for example the sector of 4KB size.
As the second step S3-2 of write method, initializing sector is transmitted to the core of interface caching by means of I/O interface
In piece.
As the third step S3-3 of write method, the position row on the slot # N of the separation byte stream of multiplexer module 4 is write.
As the four steps S3-4 of write method, position row is moved on in write buffer.
As the 5th step S3-5 of write method, preparation position row is transmitted to hdd controller 6 and is used in imbrication
It is written in the magnetic track #N of formula magnetic recording area SMRZ.
As the 6th step S3-6 of write method, Magnetic Disk Controler module 6 carries out institute by means of stacked tile type magnetic recording theory
The write-in of rheme, for example, the write-in of every 512 byte of sector.
As the 7th step of write method, for example, being repeated eight times step 3 to 6, or eight any power is repeated.
The present invention also supports the computer program product comprising computer-executable code or computer executable instructions, this
It is described herein that a little computer-executable codes or computer executable instructions execute at least one computer
Execution and calculate step.
By enlightening above, to those of ordinary skill in the art, many substitutions, modifications and variations are apparent
's.Certainly, it will be readily recognized by one of average skill in the art that in addition to application as described herein, there is also it is of the invention it is numerous its
It is applied.
Although having referred to one or more specific embodiments describes the present invention, those skilled in the art be will recognize that
It, still can many modifications may be made to the present invention to without departing from the scope of the present invention.As long as it will be understood, therefore, that
In the range of the appended claims and its equivalent sentence, this hair can be practiced with mode otherwise than as specifically described herein
It is bright.
In detail in the claims, word " comprising " is not excluded for other elements or step, and indefinite article " one " is not excluded for multiple.
Single processor or other units can complete the function of several devices described in claim.
The simple true and unawareness of this in mutually different dependent claims is only being documented in certain measures
Taste the combinations of these measures cannot be used effectively.
Computer program can be stored or be distributed on suitable medium, such as together with other hardware or as other hard
Perhaps solid state medium can also for example by internet or other have the optical storage media that the part of part provides in other forms
Line or radio telecommunications system distribution.
Claims (16)
1. a kind of write method for the stacked tile type magnetic recording for the hard disk drive including multiple magnetic tracks, which is characterized in that
In eight adjacent tracks of the multiple magnetic track arrange a byte write-in position, the write method the following steps are included:
The write operation of the sector (S1-1) is initialized, and initialization write operation data to be written are passed in the form of byte stream
It is delivered in interface cache module (1);
Separate (S1-2) at least one position row from the byte stream of the transmitting by means of writing multiplexer module (4);And
By means of at least one described separation position row of Magnetic Disk Controler module (6) write-in (S1-3).
2. write method according to claim 1,
It is characterized in that, caching at least one described position row by means of write buffer module (5).
3. write method according to claim 1,
It is characterized in that, being repeated eight times at least one capable step described in the separation (S1-2) for eight adjacent tracks
The step of rapid and said write (S1-3) at least one separation position row.
4. write method according to claim 1,
It is characterized in that, the sector that the sector is initialized as the sector-size of 512 bytes or is initialized as 1024 bytes is big
The sector-size of sector-size that is small or being initialized as 2048 bytes or any higher power for being initialized as 2 bytes.
5. the write method according to any claim in preceding claims 1 to 4,
It is characterized in that, the said write position of one byte is written according to the stacked tile type magnetic recording theory.
6. a kind of reading method for the stacked tile type magnetic recording for the hard disk drive including multiple magnetic tracks, which is characterized in that
In eight adjacent tracks of the multiple magnetic track arrange a byte write-in position, the reading method the following steps are included:
Initialize the read operation of at least one sector (S2-1);
Reading (S2-2) by means of Magnetic Disk Controler module (6) includes at least one described sector that at least one separates position row,
And at least one reading position row is transmitted to read buffer module (2), wherein at least one sector described in the reading (S2-2)
Step is for different track operations;
By means of reading at least two rows of multiplexer module (3) joint (S2-3) reading to form byte stream;And
It will be in byte stream transmitting (S2-4) to interface cache module (1).
7. reading method according to claim 6,
It is characterized in that, being repeated eight times the step of at least one sector described in the reading (S2-2) for eight adjacent tracks
Suddenly.
8. reading method according to claim 6,
It is characterized in that, the sector that the sector is initialized as the sector-size of 512 bytes or is initialized as 1024 bytes is big
Sector-size that is small or being initialized as 2048 bytes or be initialized as 2 any higher power size sector-size.
9. reading method according to claim 6,
It is characterized in that, transmitting the byte stream from the hard disk drive by means of I/O interface module.
10. the reading method according to any claim in preceding claims 6 to 9,
It is characterized in that, the said write position of one byte is written according to the stacked tile type magnetic recording theory.
11. a kind of stacked tile type for including the hard disk drive of multiple magnetic tracks records system, which is characterized in that the multiple
The write-in position of a byte is arranged in eight adjacent tracks of magnetic track, the stacked tile type record system includes:
Interface cache module (1) is designed as byte stream of the caching for write-read operation;
Caching is designed as to read the read buffer module (2) of position row and be designed as the write buffer module (5) that position row is not written for caching;
It is designed as position row being joined to the reading multiplexer module (3) of the byte stream and is designed as dividing from transmitting byte stream
Capable multiplexer module (4) are write every at least one;And
Magnetic Disk Controler module (6) is designed as reading institute's rheme row from the single magnetic track of the hard disk drive and/or by institute
Rheme row is written to the single magnetic track of the hard disk drive.
12. stacked tile type according to claim 11 records system,
It is characterized in that, sector is initialized as the sector-size of 512 bytes or be initialized as 1024 bytes sector-size or
Be initialized as the sector-size of 2048 bytes or be initialized as 2 any higher power size sector-size.
13. stacked tile type according to claim 11 records system,
It is characterized in that, the interface cache module (1) may be connected to I/O interface module, and the byte stream is by means of institute
I/O interface module is stated to transmit from the hard disk drive.
14. stacked tile type according to claim 11 records system,
It is characterized in that, the write-in position of a byte is written according to the stacked tile type magnetic recording theory.
15. a kind of hard disk drive, which is characterized in that including described in any claim according to claim 11 to 14
Stacked tile type records system.
16. hard disk drive according to claim 15,
It is characterized in that, the sector-size of the hard disk drive is for 512 bytes or 1024 bytes or 2048 bytes or with 2
Any higher power size.
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PCT/RU2014/000909 WO2016089241A1 (en) | 2014-12-04 | 2014-12-04 | Methods and recording system for shingled magnetic recording |
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CN107257997A (en) | 2017-10-17 |
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