The allocation of free area to control the damage of the disk (options)

 

The invention relates to the distribution of free areas to control the damage on the media drive, the method of its manufacture and the drive controller. The method comprises the following steps: forming groups from many areas on the disc, and includes a user data area including a block of code with error correction (KIO), the distribution of primary spare area for the group. Supplementary spare area is distributed with the possible exception of discontinuity bloc (CRO) contained in the user data area, on the border between zones, and the distribution of its two zones. This distribution can be done by skipping sectors in the end zone, if their number is less than needed for the formation of SIH, with adjustment of the initial position of the block KIO on the border between zones. The technical result - improving the efficiency of space usage. 3 C. and 22 C.p. f-crystals, 5 Il.

Description text in facsimile form (see graphic part).

Claims

1. The allocation of free area to control damage to the drive that contains the following stages: forms the lock code error correction (CRO) the distribution of the primary spare area for the group, wherein the supplementary spare area is distributed with the possible exception of discontinuity bloc (CRO) contained in the user data area, on the border between zones and the allocation of its two zones.

2. The method according to p. 1, characterized in that it further comprises the step of using the primary spare area when moving the replacement of the specified group.

3. The method according to p. 1, characterized in that the boundary between multiple zones corresponds to the field of disk protection.

4. The method according to p. 1, characterized in that the total number of additional free zones for full block is equal to (the number of zones - 1)(the number of sectors for data block 1).

5. The method according to p. 4, characterized in that the block KIO includes 16 sectors.

6. The method according to p. 1, characterized in that it further comprises the step of implementing a sliding replacement using the primary spare area, and the distribution of the secondary spare area for linear replacement in accordance with the size of the primary spare area remaining after the primary spare area for slipping replacement.

7. The method according to p. 1, ex is Ino specified size for linear replacement secondary damage arising during use of the disk after the initialization in the forward direction, starting with the highest logical unit number logical file field.

8. The method according to p. 7, characterized in that the size of the distributed subsidiary of a free area is smaller than the size of the last zone.

9. The method according to p. 7, characterized in that the size of the distributed subsidiary free regions corresponds to a continuous empty area at the end of the logical file area.

10. The method according to p. 7, characterized in that it further comprises the distribution of empty areas of the disk when an insufficient amount of continuous empty area at the end of the logical file area in the allocation of additional free space.

11. The method according to p. 10, characterized in that it further comprises the step of generating a message stating that additional spare area cannot be allocated to the insufficient size of the continuous empty area even after the location of the blank areas.

12. The method according to p. 7, characterized in that it further comprises the step of storing information relating to the distribution subsidiary of a free area in the field of management of disk damage.

13. Si, includes information about the start and end positions of the auxiliary blank area.

14. The method according to p. 7, characterized in that the auxiliary spare area is used in reverse order, starting with the last part of the logical file area, distributed as a supplementary spare area.

15. The method according to p. 1, characterized in that it further comprises the steps of identifying the corresponding disk as bad, if when replacing damaged by sliding the replacement amount of the primary spare area is insufficient, and generate error messages initialization.

16. The method according to p. 1, characterized in that it further comprises the step of assigning a secondary spare area in the area for linear replacement information unit information unit corresponds to the specified area.

17. The allocation of free area to control the damage of the disk, including the distribution of free area for a group of zones of the disk, the method includes the step of assigning additional available fields in the area with respect to the free field to adjust the initial position of the block code error correction (KIO) on the verge of the eye (CRO).

18. The method according to p. 17, wherein the slicing of the block code error correction (CRO) due to reverse bias the logical number of sectors of the disk, caused by the slipping replacement.

19. The method according to p. 17, characterized in that the boundary between multiple zones corresponds to the field of disk protection.

20. The method according to p. 17, characterized in that it contains the distribution stage supporting the free area of a predefined size for the linear change of the secondary damage that occurs during use of the disk after the initialization in the forward direction with the largest logical unit number of the logical file area of the disk.

21. The method according to p. 17, characterized in that it further comprises the step of assigning secondary free zone in one of the zones of zones for linear replacement block code error correction (KIO), the block code error correction (CRO) corresponds to the corresponding one specified area.

22. The method according to p. 17, characterized in that it further comprises the step of assigning a secondary spare area in the reverse order from the farthest part of the secondary spare area.

23. The method according to p. 17, characterized in that the transmission of information to 24. The allocation of free area to control the damage of the disk, including the distribution of free area for a group of zones of the disk, the method includes the following steps: forming groups from many areas on the disc, and includes a user data area including a block of code with error correction (KIO), the distribution of primary, open area for group and skipping sectors in the end zone, if their number is less than the quantity necessary for the formation (CRO) for adjusting the initial position of the block code error correction (KIO) on the border between zones.

25. The method according to p. 24, characterized in that it further comprises the step of redistributing the skipped block (CRO) from the start of the next zone after crossing block (CRO) in the last area of the zone.

 

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FIELD: optical data carriers.

SUBSTANCE: for protecting optical disk from recording, information concerning protection from recording is read, which is previously recorded in at least one zone of starting or ending area of data carrier, and it is determined, whether the latter is in state of recording protection. In variant, when carrier is placed in cassette body, and body has aperture for forbidding recording protection of data on disk, it is determined, if recording protection state of recording protection data written on disk is matches with state of recording protection of said aperture, and recording of new data is prevented, if said protection data and aperture position forbid recording. In a variant information concerning recording protection is stored in zones of disk identification of at least one of zones of starting and ending area of carrier.

EFFECT: higher efficiency.

5 cl, 16 dwg

FIELD: optical data carriers.

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EFFECT: higher efficiency.

2 cl, 7 dwg

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