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SCSI Commands

5-142 Quantum DLT 8000 Tape System

PERSISTENT RESERVATION IN Command (5Eh) (continued)

Table 5-64 Persistent Reservation Type Codes and Their Meanings (continued)

Code Name Description

3h Exclusive; any command from any initiator other than the initiator holding the

persistent reservation that attempts a transfer from the target results in a

reservation conflict.

Exclusive; any command from any initiator other than the initiator holding the

persistent reservation that attempts a transfer to the target results in a

reservation conflict.

Restricted; any PERSISTENT RESERVATION OUT command with the Reserve

service action from any initiator other than the initiator holding the persistent

reservation results in a reservation conflict. The initiator that holds the persistent

reservation can reserve the logical unit, extents, or elements as long as the

persistent reservations do not conflict with any reservations already known to

the device server.

4h Shared; any application client on any initiator may execute commands that

perform transfers from the target to the initiator.

Shared; any application client on any initiator may execute commands that

perform transfers to the target from the initiator.

Restricted; any PERSISTENT RESERVATION OUT command with the Reserve

service action from any initiator other than the initiator holding the persistent

reservation results in a reservation conflict. The initiator that holds the persistent

reservation can reserve the logical unit, extents, or elements as long as the

persistent reservations do not conflict with any reservations already known to

the device server.

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