Quantum 1200 Series DAT Autochanger Betriebsanweisung PDF herunterladen (Seite 194)

PREVENT / ALLOW MEDIUM REMOVAL Command (1Eh) SDLT 600 SCSI Interface Guide

4-152 January 2005 81-81200-02 REV A01

4.13 PREVENT / ALLOW MEDIUM REMOVAL

Command (1Eh)

This command enables or disables unloading the data cartridge. Each initiator maintains the

PREVENT / ALLOW status in the drive separately.

Figure 4-82. PREVENT / ALLOW MEDIUM REMOVAL Command Descriptor Block — Data

Format

Bit

Byte

7 6 5 4 3 2 1 0

0 Operation Code (1Eh)

1 Reserved

2 – 3 Reserved

4 Reserved Prevent

5 Control

Table 4-87. PREVENT / ALLOW MEDIUM REMOVAL Command Descriptor Block — Field

Descriptions

Field Name Value Description

Prevent 0 Clears the Prevent state corresponding to the initiator. When all initiators have

cleared their Prevent states, the Eject button and UNLOAD commands are

enabled both for the drive and for any attached tape automation system, library,

or loader. By default after power-on, a reset condition, or a TARGET RESET

message, the PREVENT MEDIUM REMOVAL function is cleared.

1 Effectively disables the Eject button on the drive’s front panel. The UNLOAD

command does not unload the tape medium or the data cartridge. Each initiator

maintains the PREVENT / ALLOW status in the drive separately. If the drive is

in a tape automation system, library, or loader, any MOVE MEDIUM

command is prevented from removing a data cartridge.

SDLT 600

SCSI Interface Guide

SCSI Commands

81-81200-02

REV A01

1 2 ... 189 190 191 192 193 194 195 196 197 198 199 ... 293 294

Keine Kommentare

Quantum 1200 Series DAT Autochanger Betriebsanweisung Seite 194