Operating instructions

SEPTEMBER 2005 MAGNUM 1X7 LTO AUTOLOADER
22-5
COMMAND STATUS
22.4 COMMAND STATUS
The autoloader returns a status byte after processing the SEND DIAGNOSTIC
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 returns Reservation Conflict status when it is reserved by a
different initiator or when an element involved in the requested diagnostic is
reserved by a different initiator. See Chapter 20 for more information about
the RESERVE 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 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 cartridge access port door is open.
 A reserved bit is set to 1 in the CDB.
 The autoloader encounters a hardware problem while trying to perform the
requested test.
 A parameter in the CDB or Send Diagnostic Parameter List is invalid (see
Table 22-2 for sense data).
Table 22-2 Invalid parameters in the SEND DIAGNOSTIC CDB
Sense
Key
ASC ASCQ
SKSV
Bit
C/D
Bit
BPV
Bit
Bit
Pointer
Field
Pointer
Error
5h 1Ah 00h 1 1 0 0 0003h Invalid Parameter List Length.
5h 24h 00h 1 1 1 — —
A reserved bit is set in the CDB. The
pointers point to the bit in error.