
15-16
SCSI REFERENCE 1014826
CHAPTER 15—READ ELEMENT STATUS (B8h)
Except – Byte 02, Bit 2
The Except (exception) bit indicates the current state of the tape drive, as
follows:
Full – Byte 02, Bit 0
This bit indicates if the tape drive contains a cartridge, as follows:
Additional Sense Code (ASC) – Byte 04
If the tape drive is in an abnormal state, this field contains the value 83h. Refer
to Table 15-3 on page 15-20 for the corresponding ASCQ values and a
corrective action for each abnormal state.
Additional Sense Code Qualifier (ASCQ) – Byte 05
The values for this field are listed in Table 15-3 on page 15-20, along with the
corrective action to take for each abnormal state.
IDValid – Byte 06, Bit 5
This bit indicates that the SCSI Bus Address field (byte 07) contains valid
information as follows:
LUValid – Byte 06, Bit 4
This bit indicates that the Logical Unit Number field (byte 06, bits 2 through 0)
contains valid information as follows:
0 The tape drive is in a normal state
1
The tape drive is in an abnormal state and the Additional
Sense Code and the Additional Sense Code Qualifier fields
contain information regarding the abnormal state
0 The tape drive does not contain a cartridge
1 The tape drive contains a cartridge
0
The SCSI Bus Address field is not valid because a tape drive
is not installed at this location
1
The SCSI Bus Address field is valid because a tape drive is
installed at this location
0
The Logical Unit Number field is not valid because a tape
drive is not installed at this location
1
The Logical Unit Number field is valid because a tape drive
is installed at this location
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