Fujitsu MBA3073RC, MBC2036RC, MBC2073RC, MBA3300RC, MBA3147RC Format Commands, Defect list

Models: MBA3300RC MBA3147RC MBA3073RC MBC2073RC MBC2036RC

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4.3 Format Commands

(1) Defect list

In order to register or specify the positions of defects on the disk media in connection with defect management processing that can be specified from the INIT, the following types of "Defect List" are defined.

a.P List: primary defect list

Defect position information (permanent defects) is registered in this list at the time the disk drive is shipped from the factory. The P List registers areas on the disk media which clearly cannot be accessed from the INIT. The INIT can refer to the contents of this list by the READ DEFECT DATA command only, but cannot change or erase it.

b.D List: data defect list

The defect information in this list is defect position information transferred from the INIT when this command is executed. The HDD registers this defect information on the disk media as the G List.

c.G List: grown defect list

The defect information in this list contains defect position information specified by the NIT and position information on defective data blocks detected by the HDD itself. The P List is not included in this defect list. The HDD stores the G List in an area on the disk media which clearly cannot be accessed from the INIT. The INIT can refer to the contents of this list by the READ DEFECT DATA command. the following defect position information is included in the G List.

Defect information transferred from the INIT as the D List.

Defect information detected in the Verify operation when this command was executed

Defect information specified from the INIT by the REASSIGN BLOCKS command.

Defect information on data blocks where alternate block allocation was performed among defective data blocks detected by the HDD when automatic allocation processing of alternate blocks is permitted.

C141-C013

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Fujitsu MBA3073RC, MBC2036RC, MBC2073RC, MBA3300RC, MBA3147RC specifications Format Commands, Defect list