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LOG SELECT Command (4Ch) SDLT 600 SCSI Interface Guide

4-34 January 2005 81-81200-02 REV A01

4.7.3 LOG SELECT Log Page Format

Each log page begins with a 4-byte header followed by n number of log parameter blocks—one block

for each parameter code. Each block, except for parameter code 05h, comprises 8 bytes. The parameter

block for page code 05h is 12 bytes.

Figure 4-15. LOG SELECT Log Page — Data Format

Bit

Byte

7 6 5 4 3 2 1 0

0 Page Code

1 Reserved

2 – 3

(MSB)

Page Length (n – 3)

(LSB)

Log Parameters

4 Log Parameter (First)

x + 3 Length (x)

n – y + 1 Log Parameter (Last)

n Length (y)

Table 4-20. LOG SELECT Log Page Header — Field Descriptions

Field Name Description

Page Code Specifies the log page to which this LOG SELECT command is directed.

Page Length Specifies the total number of bytes contained in this log page, not including the

4 bytes that make up the header.

Log

Parameters

Use one block for each parameter code.

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 293 294

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Quantum 1200 Series DAT Autochanger Guide de l'utilisateur Page 76