HP 220mx Guia do Utilizador descarregar pdf (Página 83)

100

101

SCSI-2 Drive Command Set

Mode Select Command (15H)

Chapter 22-46

Vendor Unique Page 21H

DAIR A Direct Access Inquiry Response bit of 1 indicates the

Peripheral Device Type field in the Inquiry Data

indicates "Direct Access Device."

A DAIR bit of 0 indicates "Optical Memory Device" in

the Peripheral Device Type field in the Inquiry Data.

DWR A Disable Write Reordering bit of 1 indicates write

reordering is not enabled.

A DWR bit of 0 indicates write reordering is enabled.

Quick

Disconnect A Quick Disconnect bit of 1 enables SCSI bus

disconnection before command validation on

performance path commands (i.e. reads, writes).

A Quick Disconnect bit of 0 disables SCSI bus

disconnection before validation on performance path

commands.

Table 2-41 Vendor Unique Page 21H

Byte 7 6 5 4 3 2 1 0

0 Reserved (0) Page Code (21H)

1 Page Length (0AH)

2 Reserved (0) DAIR

3 DWR Quick

Dis-

connect

Rsvd (0) Force

Verify

Reserved (0)

4 S1-8 S1-7 S1-6 S1-5 S1-4 S1-3 S1-2 S1-1

5 S2-8 S2-7 S2-6 S2-5 S2-4 S2-3 S2-2 S2-1

6 Reserved (0) DOM FWC

7-11 Reserved (0)

1 2 ... 78 79 80 81 82 83 84 85 86 87 88 ... 377 378

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