344 MB SCSI Hard Drive  (250-4163)   Error Codes       Faxback Doc. # 5125

SENSE  ADDITIONAL
KEY    SENSE CODE
(HEX)  (HEX)            DESCRIPTION

  0                     NO SENSE. Indicates there is no specific sense key
                        information to be reported.

         00             No additional information.

  1                     RECOVERED ERROR. Indicates the last command completed
                        successfully with some recovery action performed by 
                        the Rigid Disk Drive.

         00             No additional information.

         11             Data error with uncorrectable ECC was recovered with
                        retries. Sector should be reassigned.

         15             Recoverable seek error.
         17             Data was recovered with retries.
         18             Data was recovered using ECC.
         32             Defect List is full.
         98             Data was recovered using ECC at final retry.

  2                     NOT READY. Indicates the Rigid Disk Drive can not be
                        accessed.

         00             No additional information.
         B0             Drive is in recal.
         B1             Drive spinning up.
         B2             Drive waiting for START command.

  3                     MEDIUM ERROR. Indicates the command terminated with a 
                        non-recovered error condition that was probably caused 
                        by a flaw in the medium or an error in the recorded 
                        data.

         00             No additional information.
         01             Repeatable Qual Errors.
         11             Uncorrectable Data Error.
         13             No Sync Field was found when trying to read data.
         14             An illegal Sync Field was found when trying to read 
                        data.
         32             Running out of spares.
         91             Uncorrectable Data Error at final retry.
         93             No Sync Field was found when trying to read data at
                        final retry.
         94             An illegal Sync Field was found when trying to read
                        data at final retry.

         1C             No Defect Lists found.

4                       HARDWARE ERROR. Indicates the Rigid Disk Drive 
                        detected a non-recoverable hardware failure while 
                        performing the command.

         00             No additional information.
         02             Failed recal during seek.
         03             Write Fault Error.
         15             Seek Error.
         19             Bad Defect List.
         31             Failure to Read/Write Default Lists in FORMAT command.
         32             Defects overflow.
         43             Message reject error.
         44             SCSI hardware/firmware error.
         45             Select/Re-Select failure.
         A0             DICEY miscellaneous hardware error.
         A1             DICEY data collision.
         A2             DICEY servo collision.
         A3             DICEY attempting to write over servos.
         A4             DICEY failing to abort Read/Write when it should
         A5             DICEY found with an incorrect pointer.
         A6             DICEY aborted Read/Write for no apparent reason.
         A8             DICEY indicates an impossible condition.
         A9             RAM parity failure when not accessed.
         AE             DICEY timed out between wedges (FYLO error).
         AF             Miscellaneous FYLO hardware error.

5                       ILLEGAL REQUEST. Indicates there was an illegal 
                        parameter in the command description block or in the 
                        additional parameters supplied as data for some 
                        commands.

         00             No additional information.
         19             Defect list is not in order.
         20             Invalid command operation code.
         21             Invalid logical block address was specified.
         22             Illegal function requested.
         24             Illegal use of bit or byte in CDB.
         25             Invalid LUN.
         26             Invalid field in Parameter list.
         90             Invalid transfer length.
         A0             Couldn't Read or Write saved MODE SELECT parameters.
         A1             Disconnect bit wasn't set for COPY command.

6                       UNIT ATTENTION. MODE SELECT parameters have been 
                        changed by another initiator, or the WREN has been 
                        reset by one of the following:

                        1. BUS DEVICE RESET MESSAGE
                        2. "hard" RESET condition (RST asserted)
                        3. POWER ON RESET

         00             No additional information.
         29             Reset occurred.
         2A             MODE SELECT parameters have been changed.

  A                     COPY ABORTED. Indicates a COPY command was aborted due 
                        to an error condition on the source device, the 
                        destination device, or both.

         00             No additional information.
         45             Copy aborted due to target not selecting.
         A0             Copy aborted due to target error.

  B                     ABORTED COMMAND. Indicates the Rigid Disk drive 
                        aborted the command. The initiator may be able to 
                        recover by trying the command again.

         00             No additional information.
         40             Buffer RAM parity error.
         43             Message reject error.
         47             Parity error on the SCSI line.
         48             Initiator detector ERROR.

(abo-07/29/93)