Operating instructions

17-4
SCSI REFERENCE 1012975
CHAPTER 17—RELEASE (17h OR 57h)
17.3 COMMAND STATUS
The autoloader returns a status byte after processing the RELEASE command.
This section describes when each type of status byte might be returned.
Good
The autoloader returns Good status when it is able to process the command
without errors.
Busy
The autoloader returns Busy status when it is processing a command for a
different initiator or when it is in the process of aborting a motion command.
Reservation Conflict
The autoloader never returns Reservation Conflict status for the RELEASE
command.
Check Condition
The autoloader returns Check Condition status for the following reasons:
 The message system is enabled and a message error occurs while the
autoloader is processing the command.
 The autoloader detects an unrecoverable parity error while receiving the
CDB.
 The command is issued to an invalid LUN.
 A Unit Attention condition is pending for the initiator.
 A reserved bit is set to 1 in the CDB.
 A parameter in the CDB is invalid (see Table 17-1 for sense data).
Table 17-1 Invalid parameters in the RELEASE CDB
Sense
Key
ASC ASCQ
SKSV
Bit
C/D
Bit
BPV
Bit
Bit
Pointer
Field
Pointer
Error
5h 24h 00h 1 1 1 — —
A reserved bit is set in the CDB. The
pointers point to the bit in error.
5h 24h 00 1 1 1 1h 0001h LongID field is set to 1.
5h 24h 00 1 1 1 1h 0000h Element field is set to 1.