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Appendix A: Definition of Vendor Unique Sense Data Information
A-4 Quantum DLT 7000 Tape System
Bit 7 Bit 6
(Rsv’d)
Bit 5
(Rsv’d)
Bit 4
(Rsv’d)
Bit 3
(Rsv’d)
Bit 2 Bit 1 Bit 0
Figure A-1 Internal Status Bits
Table A–2 Internal Status Bit Flags
Bit No. Description
0 If set to 1, Cleaning Light is Illuminated, otherwise Light is off.
1 - 2 Tape Directory Status Bits:
Bit 2 Bit 1
0 0 Good Status
0 1 Unknown Status
1 0 Partial Directory (will be rebuilt when tape is
undergoing READ/WRITE)
1 1 No Directory (will be rebuilt when tape is
undergoing READ/WRITE)
3 - 6 Reserved
7 If set to 1, the Internal Status Byte (Byte 18) is in Bit Flags format; otherwise
Byte 18 contains a status code.