Maxtor 10K III VERIF Y Comma nd-Field Descriptions

SCS I Description

The VERI FY c omman d verifies the data on the medium for th e Logical Block

0 Opera tion C ode (2 Fh )

1 Reserved DPO Reserved BytChk RelAdr

2 - 5 Logical Block Address

6 Reserved

7 - 8 Verifi cation Length

9 Control

DPO

Disable Pa ge Out. When the val ue of the field = 1, the devi ce server wi ll assi gn

the logic al bl ocks access ed by this command the lowes t pri ority for bei ng

fetched i nto or retained by th e cache.

When DPO = 0, the priority will be determined by fields in the Caching page.

BytChk

Byte Check. When the v alue is 1, the drive pe rforms a byte-by-byt e comparis on

of the data on the medium with the data sent by the initiator in the data-out buff-

er transfer.

When 0, the dr ive per forms a med ium veri ficat ion wit h no data c omparison. In

this case , no data is sent by the initiator.

RelAdr Relati ve Address. This fe ature is not supported;

Logical

Block

Address The address of the first logical sector to be verified.

Verifica-

tion

Length

The number of contiguous sectors that are to be verif ied. The drive returns a

CHECK CONDITION st atus with the correct sense data if the specifi ed transfer

extends beyond out of the logical sector space.