Operating instructions

21-2
SCSI REFERENCE 1012975
CHAPTER 21—REZERO UNIT (01h)
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 or the parameter list.
 The command is issued to an invalid LUN.
 A Unit Attention condition is pending for the initiator.
 The autoloader is not ready because the door is open.
 A reserved bit is set to 1 in the CDB.