SCSI Commands
Quantum DLT 8000 Tape System
5-83
MODE SELECT Command (6) / (10) (15h) / (55h) (continued)
Table 5–41 Disconnect / Reconnect Page — Field Descriptions
Field Name
Description
PS
Parameters Savable. For MODE SELECT, this bit must be 0.
Additional Page Length
This field indicates the number bytes in the page. However, the value
does not include bytes 0 and 1. The length is returned in MODE SENSE
commands and must subsequently be set to the same value when
performing MODE SELECT. If the page length does not match that
expected by the drive, a CHECK CONDITION status is returned, sense key
set to ILLEGAL REQUEST.
The drive returns a CHECK CONDITION status with sense key set to
ILLEGAL REQUEST if it receives an unsupported Page Code or a Page field
with values not supported or changeable. In such cases, no parameters
are changed as a result of the command.
Buffer Full Ratio
Not supported. Any value is ignored.
Buffer Empty Ratio
Not supported. Any value is ignored.
Bus Inactivity Limit
Not supported. Any value is ignored.
Disconnect Time Limit
Not supported. Any value is ignored.
Connect Time Limit
Not supported. Any value is ignored.
Maximum Burst Size
This value specifies the maximum amount of data that will be transferred
without disconnecting. A value of 0 sets no limit. Any value is in units of
512 bytes. For example, a value of 8 represents 4 Kbytes. Values that are
not multiples of 8 are rounded up to the closest multiple of 8.
DTDC
Data Transfer Disconnect Control. This field defines further restrictions
for when disconnect is permitted.
DTDC
Description
00b
Data transfer disconnect control is not used. Disconnect is
controlled by the other fields in this page.
01b
Once the data transfer of a command has been started a
target does not attempt to disconnect until all the data to be
transferred has been transferred.
10b
Reserved.
11b
Once the data transfer of a command has started, a target
does not attempt to disconnect until the command is
complete.
If DTDC is a non-zero value and the maximum burst size is non-zero, the
tape drive returns CHECK CONDITION status, sense key set to ILLEGAL
REQUEST and additional sense code set to ILLEGAL FIELD IN PARAMETER
LIST.
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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