Quantum 1200 Series DAT Autochanger Podręcznik Użytkownika Pobierz pdf (Strona 154)

MODE SENSE (6) / (10) Command (1Ah / 5Ah) SDLT 600 SCSI Interface Guide

4-112 January 2005 81-81200-02 REV A01

Table 4-62. MODE SENSE Block Descriptor — Field Descriptions

Field

Name

Description

Density

Code

Matches the current tape medium density.

Density

Code Description

00h Default density

48h 133,000 bpi, 56 logical tracks, serial cartridge tape

110.0 GB / 220.0 GB (Super DLTtape I)

49h 190,000 bpi, 56 logical tracks, serial cartridge tape

160.0 GB / 320.0 GB (Super DLTtape I)

4Ah 233,000 bpi, 40 logical tracks, serial cartridge tape

300.0 GB / 600.0 GB (Super DLTtape II)

50h 175,000 bpi, 60 logical tracks, serial cartridge tape

80.0 GB / 160.0 GB (VStape I)

Number

Blocks

Set to 0, indicating that all of the remaining logical blocks on the tape have the

medium characteristics specified by the block descriptor.

Block

Length

Specifies the length in bytes of each logical block transferred over the SCSI bus. A

block length of 0 indicates that the length is variable, as specified in the I/O

command. Any other value indicates the number of bytes per block that are used for

READ, WRITE, and VERIFY type commands that specify a fixed bit of 1 (Fixed

Block Mode).

1 2 ... 149 150 151 152 153 154 155 156 157 158 159 ... 293 294

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Quantum 1200 Series DAT Autochanger Podręcznik Użytkownika Strona 154