JPH0334158A - Data recorder - Google Patents

Abstract

PURPOSE:To validate the speediness of a zone bit system by recording a data block on the optimum zone or in the neighborhood of the zone according to attribute data. CONSTITUTION:An address signal conversion part 1 inputs a R/W signal 5, a logic address 6, and the attribute data 7 from an input/output channel 12, and converts the address 6 to a physical address 10 by using a disk working status summary list 13 and a logic address/physical address conversion list 14 stored in a memory 2. The attribute data 7 consists of the priority of a user, a user ID, and a zone No., etc., and supplies a fast zone in sequence of high priority, and that of high priority of an user ID level. Thereby, data can be written on the appropriate zone according to the attribute data, and the optimum arrangement of the data to a fast outer peripheral zone or a slow inner peripheral zone can be easily performed, which validates the speediness of the zone bit system.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data recording device suitable for a disk-shaped recording medium that performs recording and reproduction using a zone bit recording method.

[Conventional technology]

There is a hard disk drive device (hereinafter simply referred to as a disk) as a disk-shaped recording medium for recording data in computers, etc. The information recording method on the disk is C.
There are two types: one based on the AV (constant angular velocity) method and the other based on the CLV (constant linear velocity) method.

On a disk recorded by the CAV method, seek (head positioning processing) is the sum of head movement time and rotational waiting time until a desired data bit arrives, and high-speed seeking is possible. On the other hand, since the linear velocity of the outer track is higher than that of the inner track, if the recording length per bit on the inner track is set appropriately, the recording length per bit on the outer track will be larger than necessary. As a result, the recording density cannot be increased very much, which is inconvenient for long-term information recording.

On discs recorded using the CLV method, the recording length per bit is the same across all tracks, which results in a high recording density and is suitable for long-term information recording.On the other hand, when seeking, the disc length It is necessary to adjust the rotation speed according to the track where the desired bit is located. In order to achieve stable rotation, the moment of the rotating part of the disk must be large, so it takes a lot of time to reach the desired speed, making seeking slow, which is inconvenient for high-speed information recording. be.

As a data recording method that solves the problems of the CAv method and CLV method mentioned above,
There is a data recording method (referred to as E!, Y-zone bit recording method) described in No. 6, and this method will be explained using FIG.

FIG. 2 is an explanatory diagram of a disk formatted by the zone bit recording method. As shown in this figure, the disk is divided into zones Zl, Z2, . Z
3. It is divided by...

The number of sectors in each track within one zone is fixed.

The write/read frequency of each zone is given an optimal value for the data density of the innermost track of the zone. By doing this, it is possible to achieve a relatively uniform data density over the entire area of the disk, so that although there is a slight loss compared to the CLV method, more information can be recorded than in the CAV method. Also, since the angular velocity is constant, seek can be performed at the same speed as the CAV method.

Further, since a faster write/read frequency is used for tracks on the outer track than on the inner track, faster data transfer is possible on the outer track than on the inner track. FIG. 3 shows an example of the number of sectors and transfer speed ratio for each zone.

As shown here, the speed of the outer zone is improved compared to the inner zone.

[Problem a that the invention attempts to solve]

In the above-mentioned conventional disk, no consideration was given to the fact that the speed of the outer peripheral zone is higher than that of the inner peripheral zone, and there was a problem in that the high speed performance of the disk could not be fully utilized. For example, O, which is always read when the system starts
If the 8th grade is placed on the inner periphery, the rise time will be longer.

An object of the present invention is to provide a data recording device that takes advantage of the high speed of the zone bit recording method.

Another object of the present invention is to provide a composite file device comprising a plurality of data recording devices that takes advantage of high speed performance.

[Means for Solving the Problems] In order to achieve the above object, data records can be recorded in the optimal zone or its vicinity according to attribute data.

Furthermore, the priority of the data as attribute data.

This is a dispute using the user ID and zone number.

Furthermore, an operating system, character font data, or image data is recorded in the outer peripheral zone.

Furthermore, means for storing the number of accesses and registration time of a data block and means for moving a data block from one zone to another are provided.

In order to achieve another object, data blocks can be recorded in an optimal data recording device according to attribute data.

Furthermore, means for storing the number of accesses of a data block, means for storing a registration time of a data block, and means for moving a data block from one data recording device to another data recording device are provided.

[Effect]

Data is written to the optimal zone according to the attribute data, so the outer zone can be written at high speed according to the data.

It can be optimally placed in the low-speed inner zone and can be read and written at high speed.

By giving data priority as attribute data, data can be arranged from the outer periphery in descending order of priority, and by giving a user ID as attribute data, it can be arranged in a recording zone according to the user.
It can be placed in the specified zone by giving .

By placing the operation system in the outer zone, the startup time of information processing equipment can be shortened.

By arranging character font data in the outer peripheral zone, the display or printing processing of the information processing device can be speeded up, and by arranging one image data in the outer peripheral zone, the image processing speed of the information processing device can be speeded up.

By starting data recording from the outer periphery, data is placed in the outer periphery zone while the used data area in the data recording device is small, so that high-speed reading and writing is possible.

By moving the data block from the current zone to another zone according to the elapsed time after the data block xta and the number of accesses, frequently used data blocks can be placed in the high-speed outer peripheral zone, allowing high-speed reading and writing.

Since the data can be recorded in the most suitable data recording device according to the f-characteristic data, it is easy to optimally arrange the data in a high-speed data recording device or a low-speed data recording device according to the data, and high-speed reading and writing is possible.

By moving the data block from the data recording device in which it is currently recorded to another data recording device according to the elapsed time after data block registration and the number of accesses, frequently used data blocks can be read and written at high speed.

〔Example〕

A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a hard disk device according to a first embodiment. Reference numeral 12 denotes an input/output channel connected to an information processing device (not shown), and input/output channel 12 inputs the R/W signal 5, logical address 6, and attribute data 7 output from the input/output channel 12, and stores them in the memory 2. Disk usage status -
List 13 and Ronen address/physical address conversion i14
Convert logical address 6 to physical address 10 using .

Zone bit recording method hard disk 3 (hereinafter referred to as

This is an address translation unit that gives an address to a disk (simply referred to as a disk).

Furthermore, the address conversion unit 1 is a microprocessor 112.
(MPU112), RO which stores the control program of MPU112, M113. It consists of a RAM 114 and an I10 controller ill that performs input/output control with the outside.

Here, the logical address 6 indicates one logical sector, and the physical address 10 indicates the physical position of one sector on the disk 3.

4 converts the parallel data 8 output from the input/output channel 12 into serial data 11 and provides it to the disk 3 when writing data, and converts the serial data 11 output from the disk 3 into parallel data 8 when reading data. P/S with the function of providing input/output channel 12 with
, Fs/P converter.

No. 4111 is a diagram showing an example of the disk usage status table 13. In this figure, the number of sectors on the disk is 2. The number of tracks is 4. Number of discs: 1, 1 truck,
Zone 1 from 2. It is assumed that zone 2 is composed of tracks 3 and 4. The used flag indicates whether the sector is used.

FIG. 5 is a diagram showing an example of the logical address/physical address conversion table 14. As in Figure 4, the number of sectors is 2. It is assumed that the number of tracks is 4 - the number of discs is l.

FIG. 6 is a flowchart showing the operation of the MPU 112 of the address translation unit 1 during writing to the disk. This flowchart shows the ROM 113 in Figure 1.
is stored in.

FIG. 7 is a flowchart showing the operation of the address converter when reading from the disk.

The address output operation when writing to a disk will be explained below using FIG. 6. First, SL.

In S2, logical address 6 and attribute data 7 are input.

Here, attribute data 7 is, for example, data priority,
These include user ID, zone number, etc. Attribute data 7 on which the zone number is determined in S3 based on this data.
When determining the zone number from the following, for example, the following criteria are followed.

(1) Zone N of the high-speed outer zone in order of priority
Give O.

(2) Give zone numbers of high-speed outer zones in descending order of user ID level.

(3) No conversion is required when the zone number is given.

The free area of the zone determined in S4 is checked using the disk usage status table 13, and if there is free space, a physical address of the free area is generated, and the physical address is entered in the logical address/physical address conversion table 14 in S6. At the same time as writing, a usage flag for the sector is set in the sector usage status table 13. Further, in S7, the physical address 11 is outputted and given to the disk 3. If there is no free space, it is checked in S5 whether the zone number has reached the maximum value, and if it is the maximum value, processing is performed in S7 to notify an information processing device (not shown) that the disk is full, and if it is less than the maximum value. Zone N in S6
Increment O and go to check the vacancy in the next zone.

Next, the address output operation when reading from the disk will be explained using FIG. The control program for this flowchart is also stored in the ROM 113 in FIG. First, at T1, a logical address is input, at T2 a physical address is generated using the logical address/physical address conversion table 14, and at T3, the physical address is output to the disk 3.

As described above, according to this embodiment, according to the attribute data,
Since it is possible to write to the optimal zone or its neighboring zones, it is easy to optimally place data in a high-speed outer zone or a low-speed inner zone according to the nature of the data, making it possible to use a high-speed hard disk drive. It has a % even effect.

Next, a second embodiment will be described. FIG. 8 is a diagram showing the data arrangement on the disk of the zone bit recording type hard disk device of the second embodiment.

50 is a number indicating a disk, and 5 is a zone on the outer periphery that can be read and written at high speed, and is an operation system used in an information processing device not shown here.

Arrange character font data and image data. Here, the operation system, character font data, and II image data are considered as attribute data. 16 is a zone where the speed is slightly lower than the outer circumference, and a user application program is placed here.

O8 is generally loaded into the main memory of an information processing device (not shown) at system startup, so O8 is
8 on the outer periphery, it is possible to shorten the start-up time of an information processing device (not shown).

Further, by arranging the character font on the outer periphery, display or printing on an information processing device (not shown) can be speeded up.

Furthermore, by arranging the image data on the outer periphery, the image processing speed of an image processing device (not shown) can be increased.

Next, a third embodiment will be described.

FIG. 9 is an overall block diagram of a hard disk device according to a third embodiment. 23 is a zone 23) having 4 zones; 18 is a memory for storing a disk usage status table 13, a logical address/physical address conversion table 45, and a history formula 51 for the number of accesses and registration time of a certain data block; 19
is a buffer of at least one sector, 24 is a clock, and 12 is an input/output channel. 17 is a history formula stored in memory 18 and a buffer 19. It is a transfer control unit that has a function of rearranging data blocks on the disk 23 in an optimal arrangement using a clock 24, and performs data transfer between the 1 normal input/output channel 12 and the disk 23.

FIG. 10 is a diagram showing an example of a history formula stored in the memory 18.

This device uses data block access times 'I&' and registration times as attribute data. In this way, attribute data is not only given initially, but also can be added later.

When writing new data on this disk device,
The input/output channel 12 is used to write data in or near the outermost zone, and to rearrange data blocks.
IJI is automatically started when a reordering command is given or after a certain period of time after the previous reordering.

FIG. 11 is a flowchart showing the procedure for rearranging data blocks. The data block rearranger J@ will be explained below with reference to this figure.

First, enter O in the address using Ul. In U2, read the history formula 51 of the data block whose address has been added. If the data block is 4J or 1 month old after D, proceed to U8. If more than a month has passed, read the history formula 51's registration time as of now. Next, the zone number of the transfer destination is determined based on the number of accesses shown in FIG. 912 and the standard table for determining the zone number. In U6, ° checks whether the zone number of the transfer destination is equal to the current zone number, and if they are equal, proceed to U8. If they are not equal, move the data block of the current zone to the buffer 19 in U7, and then transfer it to the transfer destination. Transfer to an empty area in zone No. or a zone in its vicinity. Then U8
The address is incremented at U9, and if it is not the final address at U9, processing proceeds to the next data block.

As mentioned above, by placing newly written data in the outer zone and changing the data placement on the disk according to the number of data accesses after a certain period of time, frequently used data blocks can be written at high speed. Since the hard disk drive is arranged in the outer peripheral zone, it is possible to provide a high-speed hard disk device.

Although the first, second, and third embodiments have described the present invention in detail for a hard disk device having a concentric information recording trunk, the present invention can also be applied to a spiral optical disk device. Needless to say.

Next, the embodiment shown in FIG. 4 will be described.

FIG. 13 is a block diagram of a composite file device comprising a plurality of data recording devices according to the fourth embodiment. Functional blocks equivalent to those in FIG. 1 are given the same numbers. In FIG. 14, reference numeral 40 denotes a semiconductor memory device whose stored contents are retained by a backup power source 41, and although it is high speed, the bit unit is high and the storage volume is small. Reference numeral 38 is an eight-card disk device, which is slightly slower in speed than a semiconductor memory device, but has a relatively low bit unit price and a medium storage capacity.

Reference numeral 39 is an optical disk device that writes and reads data by optical means, and although the speed is inferior, the unit bit price is the lowest and the storage capacity is large. Memo U 2 includes a list of usage status of each data recording device 44. Logical address/physical address conversion table 45. Data block usage history formula 46
is memorized.

43.34.35 is a P/S that performs parallel-to-serial conversion when writing and serial-to-parallel conversion when reading.
, an S/P converter. 25 is a file controller that sends data sent from the input/output channel to each data recording device.

Address output operations during writing and reading by the file controller will be explained.

At the time of writing, a data recording device for recording data is selected based on the attribute data field, and any one of the semiconductor memory device enable signal, hard disk device enable signal, and optical disk device enable signal is activated. Furthermore, the usage status list 44 is read out from the memory 2 and empty areas are counted. After flagging the empty area you found for use.

The found physical address and device code corresponding to the requested logical address are written in the logical address/physical address list 45, and then the physical address 26 is given to each data recording device.

At the time of reading, the logical address/physical address list 45 is read out, the physical address and data recording device corresponding to the logical address are obtained from the table (b), and the physical address is output.

Also, based on the data block usage history table 46, it also has a function to transfer data blocks that are accessed frequently after a certain period of time to a high-speed data recording device, or to transfer data blocks that are accessed infrequently to a slow data recording device. ing.

As described above, according to this embodiment, an appropriate data recording device can be automatically selected based on the attribute data 17.
It is possible to provide an efficient and high-speed compound file device.

By moving data between each data storage device based on the number of accesses to the friend data block after a certain period of time has elapsed, frequently used data blocks and recently registered data blocks are placed in high-speed data storage devices. A high-speed compound file device can be provided.

[Effects of the Invention] According to the present invention, data is written to a suitable zone according to attribute data, so it is easy to optimally arrange data in a high-speed outer zone or a low-speed inner zone according to the data. There are effects that a recording device can provide.

Also, by giving priority to the data as attribute data, data can be placed from the outer periphery in descending order of priority, by giving a user ID as attribute data, it can be placed in a recording zone according to the user, and by giving a zone number as attribute data. This allows you to place it in a designated zone,
Optimal arrangement according to the nature of data can be easily performed, and a high-speed data recording device can be provided.

Furthermore, by arranging the operating control system in the outer zone, the startup time of the information processing device can be shortened, and by arranging character font data in the outer zone, the information processing device can display or print at high speed. By arranging the image data in the outer peripheral zone, the image processing speed of the information processing device can be increased.

Furthermore, by starting data recording from the outer periphery, data is placed in the outer periphery zone while the used data area in the data recording device is small, so a high-speed data recording device can be provided.

Furthermore, by moving data blocks from the cursed zone to another zone according to the elapsed time after data block registration and the number of accesses, frequently used data blocks can be placed in high-speed outer zones, resulting in high-speed data recording. This has the effect of providing equipment.

Furthermore, since it is possible to record to the most suitable data recording device according to the attribute data, it is possible to optimally place the data in a high-speed data recording device or a low-speed data recording device according to the data. There is an effect that can be provided.

Furthermore, by moving the data block from the data recording device where it is currently recorded to another data recording device according to the elapsed time after data block registration and the number of accesses,
Since frequently used data blocks can be read and written at high speed, a high-speed composite file device can be provided.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the hard disk device of the first embodiment, Fig. 21g is an explanatory diagram of a disk formatted by the zone bit recording method, and Fig. 3 shows an example of the relationship between the number of sectors in each zone and the transfer speed ratio. Figure 4 shows an example of a disk usage status table, Figure 5 shows an example of a logical address/physical address conversion table, and Figure 6 shows an example of the address conversion section when writing to a disk. FIG. 7 is a flowchart showing the operation of the address converter when reading from a disk, FIG. FIG. 10 is an overall block diagram of the hard disk drive according to the third embodiment; FIG. 10 is a diagram showing an example of a history table stored in a memory; and FIG. 10 is a block diagram of a composite file device comprising an eleventh data recording device. 1...Address conversion unit, 2...Memory, 13...
・Disk usage status list, 14... Logical address/physical address conversion table, 3... Zone bit recording method hard disk. 5...R/W signal, 6...Logical address
7...Data attribute. Akira! Kukosen 1 The 4th area of 4/2 A6 The 72nd area of the 10th area

Claims (1)

[Claims] 1. A disk-shaped recording medium that records information on information recording tracks at a constant angular velocity is divided into zones each consisting of a plurality of information recording tracks, and reading and writing are performed at an optimal recording frequency according to each zone. A data recording apparatus (hereinafter referred to as a zone bit recording type data recording apparatus) characterized in that a zone in which data is recorded is determined according to a data attribute. 2. In the zone bit recording type data recording device according to claim 1, the attribute data includes data priority;
A data recording device using a zone bit recording method, characterized in that a user ID and a zone number are used. 3. A zone bit recording data recording device characterized in that an operating system, character font data, or image data is recorded in an outer zone. 4. The zone bit recording method data recording device has means for storing the number of accesses of a data block, means for recording the registration time of the data block, and means for moving the data block from one zone to another, and after registration. A data recording device using a zone bit recording method, characterized in that data blocks are moved from a current zone to another zone according to the elapsed time and the number of accesses. 5. A composite file device comprising a plurality of data recording devices, characterized in that a data recording device for recording data is determined according to data attributes. 6. In a composite file device consisting of a plurality of data storage devices, means for storing the number of accesses of a data block, means for storing the registration time of a data block, and moving a data block from one data storage device to another data storage device. 1. A composite file device, comprising means for moving a data block from a current data storage device to another data storage device according to the elapsed time after registration and the number of accesses.