Quantum 1200 Series DAT Autochanger Guia do Utilizador descarregar pdf (Página 175)

SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands

81-81200-02 REV A01 January 2005 4-133

Disaster Recovery Control Page (3Ch)

This page controls the operation of the Disaster Recovery Control Mode for the drive.

Figure 4-74. Disaster Recovery Control MODE SENSE Page — Data Format

Bit

Byte

7 6 5 4 3 2 1 0

0 PS (0) Rsv’d Page Code (3Ch)

1 Page Length (4)

2 Reserved DRAct

3 – 5 Reserved

Table 4-75. Disaster Recovery Control MODE SENSE Page — Field Descriptions

Field Name Description

PS Parameters Savable. Always set to 0.

Page Code Identifies the type of MODE SENSE page being transferred. A value of 3Ch

identifies this as the Disaster Recovery Control Page.

Page Length Indicates the number bytes in the page, excluding bytes 0 and 1. The length

is returned in MODE SENSE commands and must subsequently be set to the

same value when performing MODE SELECT.

DRAct Disaster Recovery Active. When set to 1, the drive operates in Disaster

Recovery mode. When set to 0, the drive does not operate in Disaster

Recovery mode.

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