Quantum DLT 8000 Manual descarregar pdf (Página 300)

100

101

SCSI Commands

5-156 Quantum DLT 8000 Tape System

PERSISTENT RESERVATION OUT Command (5Fh) (continued)

Table 5-68 Persistent Reservation Type Codes and Their Meanings (continued)

Code Name Description

6h Exclusive Access,

Registrants Only

READS: Exclusive; any command from an initiator that has not previously

performed a Register service action with the device server that

attempts a transfer from the target results in a reservation conflict.

WRITES: Exclusive; any command from an initiator that has not previously

performed a Register service action with the device server that

attempts a transfer to the target results in a reservation conflict

ADDITIONAL RESERVATIONS: Allowed; any initiator may reserve the logical

unit, extents, or elements as long as the

persistent reservations to not conflict with any

reservations already known to the device

server.

7h - Fh Reserved N/A

The PERSISTENT RESERVATION OUT command requires a parameter list,

illustrated in the following figure and defined in the following table. Each of the

fields of the parameter list are sent for every PERSISTENT RESERVATION OUT

command, even if the field is not required for the specific Service action and/or Scope

values.

Bit

Byte

7 6 5 4 3 2 1 0

0 – 7

(MSB)

Reservation Key

(LSB)

8 – 15

(MSB)

Service Action Reservation Key

(LSB)

16 – 19

(MSB)

Scope-Specific Address

(LSB)

20 Reserved APTPL

21 Reserved

22 – 23

(MSB)

Extent Length

(LSB)

Figure 5–69 PERSISTENT RESERVATION OUT Parameter List — Data Format

1 2 ... 295 296 297 298 299 300 301 302 303 304 305 ... 407 408

Comentários a estes Manuais

Sem comentários

Quantum DLT 8000 Manual Página 300

Comentários a estes Manuais

Manuais e produtos relacionados com Unidades de fita magnética Quantum DLT 8000