D-8
TS2900 Tape Autoloader Setup, Operator, and Service Guide
The descriptions below serve only as an overview of sense reporting in the tape drive.
This tape drive conforms to all sense field reporting as specified in the SCSI
standards.
Note:
1.
The Error Code field (Byte 0) is set to 70h to indicate a current error, that is one
associated with the most recently received command. It is set to 71h to indicate
a deferred error which is not associated with the current command.
2.
The segment number (Byte 1) is zero since the Copy, Compare, and Copy and
Verify commands are not supported.
3.
The File Mark flag (Byte 2, bit 7) is set if a Space, Read, or Verify command did
not complete because a file mark was read.
4.
The End of Media (EOM) flag (Byte 2, bit 6) is set if a Write or Write File Marks
command completed in the early warning area. Spacing into BOM also causes
this flag to be set. It is also set on an attempt to read or space past EOD, or if an
attempt is made to space into Beginning of Media.
5.
The Illegal Length Indicator (ILI) flag (Byte 2, bit 5) is set if a Read or Verify
ended because a block was read from tape that did not have the block length
requested in the command.
6.
The Information Bytes (Bytes 3-5) are only valid if the Valid flag is set. This
occurs only for current errors and not for deferred errors.
7.
The Field Replaceable Unit field (Byte 14) is set to either zero or to a non-zero,
vendor-specific code indicating which part of the drive is suspected of causing
the failure.
8.
The Clean (CLN) flag (Byte 21, bit 3) is set if the drive needs cleaning and clear
otherwise.
9.
The Volume Label Fields Valid (VolValid) bit (Byte 21, bit 0) is set if the Volume
Label being reported is valid.
10.
The Volume Label field (Bytes 22-28) reports the volume label if a cartridge is
loaded in the drive and Volume Label Fields Valid is set.
11.
The Current Wrap field (Byte 29) reports the physical wrap of the tape. The least
significant bit reflects the current physical direction. A0h means that the current
direction is away from the physical beginning of the tape. A1h means that the
current direction is towards the physical beginning of the tape.
12.
Relative LPOS fields (Bytes 30-33) reports the current physical position on the
tape.
61–62
Next-to-Last Error FSC
63–64
Next-to-Last Error Flag Data
65–66
Last Error FSC
67–68
Last Error Flag Data
69
LPOS Region
70–85
ERP Summary Information
86–89
Product Revision Label: YMDV
(As defined in Standard Inquiry; this is also known as the Code Level)
90–95
Reserved (0)
Table D-3. Ultrium Tape drive sense data (continued)
Byte
Bit Address or Name
7
6
5
4
3
2
1
0
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