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SCSI Commands
Quantum DLT 4000 Tape Drive
5-71
MODE SELECT (6) / (10) Command (15h) / (55h) (continued)
Table 5–37 Error Recovery 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.
TB
Transfer Block. Not supported.
EER
Enable Early Recovery. Set to 1 (always enabled).
PER
Post Error. Default is 0. If set to 1, this bit enables reporting of CHECK
CONDITION to report recovered READ / WRITE errors.
DTE
Disable Transfer on Error. Must be 0. Not supported.
DCR
Disable ECC Correction. Must be 0. Not supported.
Read Retry Count
This field reports the maximum number or rereads that are attempted
before declaring an unrecoverable error.
Write Retry Count
This field reports the maximum number of overwrite retries that will be
attempted before declaring an unrecoverable error.
5.9.3 Disconnect / Reconnect Page (02h)
The Disconnect / Reconnect Page controls the drive’s behavior on the SCSI bus
and allows an initiator to tune bus performance.
Summary of Contents for DLTtape DLT 4000
Page 1: ...DLT 4000 Tape Drive Product Manual November 10 2003 81 60043 04 ...
Page 5: ...USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT continued ...
Page 6: ......
Page 24: ...About This Manual Quantum DLT 4000 Tape Drive xxiv ...
Page 62: ...Hardware Implementation 2 28 Quantum DLT 4000 Tape Drive ...
Page 100: ...Messages 4 12 Quantum DLT 4000 Tape Drive ...
Page 264: ...SCSI Commands 5 164 Quantum DLT 4000 Tape Drive ...
Page 274: ...Appendix B EEPROM Resident Bugcheck and Event Logs B 6 Quantum DLT 4000 Tape System ...
Page 280: ...Appendix C Updating the Firmware C 6 Quantum DLT 4000 Tape Drive ...
Page 298: ...Index Index 6 Quantum DLT4000 Tape Drive ...
Page 299: ......