HP 220mx Guia do Utilizador descarregar pdf (Página 56)

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101

SCSI-2 Drive Command Set

Reassign Blocks Command (07H)

Chapter 2 2-19

SCSI-2 Drive Commands

Reassign Blocks Command (07H)

This command reassigns defective sectors. A defect list containing the

Logical Block Addresses to be reassigned is transferred to the drive.

Data in the defective sector is moved to the replacement sector.

Reassign Blocks Command Defect List

The Reassign Blocks command defect list is made up of a 4-byte Defect

List Header and zero or more 4-byte Defect Descriptor blocks.

Table 2-14 Reassign Blocks Command CDB

Byte 7 6 5 4 3 2 1 0

0 Operation Code (07H)

1 Logical Unit Number

(0)

Reserved (0)

2 Reserved (0)

3 Reserved (0)

4 Reserved (0)

5 Reserved (0) Flag Link

Table 2-15 Reassign Blocks Command Defect List Header

Byte 7 6 5 4 3 2 1 0

0 Reserved (0)

1 Reserved (0)

2 Defect List Length (MSByte)

3 Defect List Length (LSByte)

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 377 378

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