Reference Guide

Chapter 4 SCSI Commands
REQUEST SENSE Command (03h)
DLT-S4 Interface Reference Guide 310
Table 174 provides the Additional Sense Codes (ASCs) and Additional
Sense Code Qualifiers (ASCQs) that the drive may report. Additional
information, explanations, or suggestions for action are included with
some of the descriptions.
Table 174 Supported ASC /
ASCQ (Hex) for REQUEST
SENSE Command
5h ILLEGAL REQUEST. The CDB or supplied parameter data specified an unsupported or
illegal operation. Check the Byte Pointer and Bit Pointer fields for an indication of the field
in error.
6h
UNIT ATTENTION. The drive generates Unit Attentions after a device reset if: 1) the medium
asynchronously becomes ready to the initiator, 2) if another initiator changes Mode
Parameters, 3) if the firmware is updated, or 4) if the latter two items occur together.
7h
DATA PROTECTED. The current tape medium is write-protected. Either the Write Protect
switch on the cartridge is in its enabled position, the tape medium is not the appropriate
type, or a software write protect is in effect.
8h
BLANK CHECK. The drive encountered End of Data or a blank tape.
Bh
COMMAND ABORTED. Generated when the drive aborts a command.
Dh
VOLUME OVERFLOW. Indicates that the drive reached the physical end of tape medium
during writing. The initiator ignored the End of Medium condition and continued to write
to the tape.
Text Name
Sense
Key ASC ASCQ Description
NO SENSE 00h 00h 00h No Additional Sense Code
00h 01h FileMark Encountered
00h 02h End of Medium (EOM) Encountered
00h 03h SetMark Encountered
00h 04h Beginning of Medium (BOM) Encountered
00h 05h EOD Encountered
00h 16h Operation in Progress
30h 05h Cannot Write Medium - Incompatible Error
Sense Key Description