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SCSI Commands
Quantum DLT 8000 Tape System
5-183
REPORT DENSITY SUPPORT Command (44h) (continued)
Table 5-84 Density Support Data Block Descriptor — Field Descriptions
Data Field
Description
Primary Density
Code
This field contains the value returned by a MODE SENSE command for the
density described in the remainder of the Density Support Data Block
Descriptor. Allowable Density Codes for the tape system are shown in Table
(To Be Supplied).
Secondary
Density Code
When multiple density code values are assigned to the same recording
technology, this field lists the equivalent density code value. If no secondary
density code exists, the device server returns the primary device code value
in this field.
WRTOK
Write OK. When this bit = 0, it indicates that the drive does not support
writing to the media with this density.
When this bit = 1, it indicates that the drive is capable of writing this
density to either the currently mounted medium (if Media bit in the
Command Block Descriptor = 1) or for some media (if Media bit in the
Command Block Descriptor = 0). Note that all density code values returned
by the Report Density Support command are supported for READ
operations.
DUP
Duplicated. When this bit = 0, it indicates that this Primary Density Code
has exactly one density support data block.
When this bit = 1, it indicates that this Primary Density Code is specified in
more than one density support data block.
DEFLT
Default. When this bit = 0, it indicates that this is not the default density of
the tape drive.
If either the Primary Density Code or the Secondary Density Code is 0, the
DEFLT bit will be 1. If neither the Primary or Secondary Density Code is 0
and DEFLT is 1, the logical unit will accept a MODE SELECT header with a
density code of 00h as equivalent to the Primary and Secondary Density
Codes.
NOTE: The default density of the logical unit may vary depending on the
currently mounted media. Multiple codes may return a DEFLT bit of 1 when
the Media bit is 0 since more than one default may be possible.
(continued)
Summary of Contents for DLTtape DLT 8000
Page 1: ...DLTTM 8000 Tape System Product Manual Nov 10 2003 81 60118 06...
Page 5: ...USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT continued...
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Page 26: ...Table of Contents xxiv Quantum DLT 8000 Tape System...
Page 36: ...About This Manual Quantum DLT 8000 Tape System xxxii...
Page 54: ...General Description and Specifications 1 18 Quantum DLT 8000 Tape System...
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Page 376: ...Appendix A Definition of Vendor Unique Sense Data Information A 4 Quantum DLT 8000 Tape System...
Page 386: ...Appendix C Updating the Firmware C 6 Quantum DLT 8000 Tape System...
Page 396: ...Appendix E Visual Inspection Procedure for DLTtape Cartridges E 8 Quantum DLT 8000 Tape System...
Page 406: ...Appendix G DLT 7000 Emulation Feature G 8 Quantum DLT 8000 Tape System...
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