Quantum 1200 Series DAT Autochanger Guía de usuario Pagina 203

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SDLT 600 SCSI Interface Guide Chapter 4: SCSI Commands
81-81200-02 REV A01 January 2005 4-161
VOLUME LIST Service Action
The READ ATTRIBUTE command with the VOLUME LIST service action returns parameter data
(see Figure 4-87) identifying the supported number of volumes. The contents of the Volume Number,
Partition Number, and First Attribute Identifier fields in the CDB are ignored.
Figure 4-87. READ ATTRIBUTE with VOLUME LIST Service Action — Parameter List Format
Bit
Byte
7 6 5 4 3 2 1 0
0 – 1
(MSB)
Available Data (02h)
(LSB)
2 First Volume Number
3 Number of Volumes Available
Table 4-93. READ ATTRIBUTE with VOLUME LIST Service Action Parameter Data — Field
Descriptions
Field
Name Description
Available
Data
Preset to 02h.
First
Volume
Number
Indicates the first volume available. Volume numbering starts at 0.
Number of
Volumes
Available
Indicates the number of volumes that are available. SDLT tape drives only
support one volume on the medium.
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