6.Command Specification
REQUEST SENSE
6-94
SONY AIT-3Ex drive SDX-800V series Ver.1.0
ABORTED COMMAND
43 00
MESSAGE ERROR – Unexpected Message phase.
45 00
SELECT OR RESELECT FAILURE - SCSI Selection/ Re-selection error.
47 00
SCSI PARITY ERROR - SCSI Parity Error detected and drive proceeded to Status
phase.
48 00
INITIATOR DETECTED ERROR MESSAGE RECEIVED.
4A 00
COMMAND PHASE ERROR
4B 00
DATA PHASE ERROR – Possible DMA error
0Bh
4E 00
OVERLAPPED COMMANDS ATTEMPTED - Host issued a new command to the drive
while a previous command was being executed.
VOLUME
OVERFLOW
0Dh
00 02
END-OF-PARTITION/MEDIUM DETECTED - During Write type operation.
0Eh
MISCOMPARE. Not supported by the SDX-800V
0Fh
RESERVED. Not used by SDX-800V
REQUEST SENSE returns the CHECK CONDITION status only to report fatal errors for the REQUEST SENSE
command.
For example:
The target receives a non ZERO reserved bit in the command descriptor block.
An un-recovered parity error occurs on the Data Bus.
A target malfunction prevents return of the sense data.
The Allocation Length falls between block boundaries.
Following a fatal error on REQUEST SENSE, the sense data should be considered invalid. The host may attempt
recovery by selecting the drive and issuing a BUS DEVICE RESET message directly following the IDENTIFY
message. This forces the drive to do a hard reset. If the fault persists, the host should deny access to the drive.
