Quantum 1200 Series DAT Autochanger Guide de l'utilisateur télécharger pdf (Page 223)

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SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands

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4.16 READ BLOCK LIMITS Command (05h)

The READ BLOCK LIMITS command directs the SDLT tape drive to report its block length limits.

Figure 4-93. READ BLOCK LIMITS Command Descriptor Block — Data Format

The READ BLOCK LIMITS data shown below is sent during the DATA IN phase of the command.

The command does not reflect the currently selected block size, only the available limits. The MODE

SENSE command returns the current block size.

Figure 4-94. READ BLOCK LIMITS Data — Data Format

Bit

Byte

7 6 5 4 3 2 1 0

0 Operation Code (05h)

1 – 4 Reserved

5 Control

Bit

Byte

7 6 5 4 3 2 1 0

0 Reserved Granularity (0)

1 – 3

(MSB)

Maximum Block Length

(LSB)

4 – 5

(MSB)

Minimum Block Length

(LSB)

SDLT 600

SCSI Interface Guide

SCSI Commands

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REV A01

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