6.Command Specification
REQUEST SENSE
SONY AIT-2 Turbo drive SDX-550V series Ver.1.0
6-90
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-550V
0Fh
RESERVED. Not used by SDX-550V
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.