Quantum DLT 8000 Product Manual page 344

SCSI Commands
Filemark, End of Medium (EOM), and Incorrect Length Indicator (ILI) Bits
Filemark (byte 2, bit 7), EOM (byte 2, bit 6), and ILI (byte 2, bit 5) are names of fields in
the REQUEST SENSE command. Any of these bits may be set to a 1 even though the
Additional Sense Code (ASC) / Additional Sense Code Qualifier (ASCQ) bits have a
value of 0.
For example:
Filemark, EOM, ILI bit may be set to 1 with No Sense key (00h)
and ASC / ASCQ = 00 00.
Filemark, EOM, ILI bit may be set to 1 with Recovered Error
(01h) and ASC / ASCQ = 00 00.
Filemark, BOM, ILI bit may be set to 1 with Medium Error (03h)
and ASC / ASCQ = 00 00.
5-200 Quantum DLT 8000 Tape System