Fujitsu MAX3073NC - SCSI,80, Dell DC961,Hard Drive Scsi Logical Interface Specifications page 276

Sense Data Error Recovery Methods
Table 5.4
Recovery
method
12 1) Set the "Number of Retries" value in the MODE SELECT parameters at the "Default"
value.
2) Reissue the original command (Retry). (Note)
3) If the error is not recovered from after the first retry, issue the REZERO UNIT command.
4) Reissue the original command (Retry). (Note)
5) If the error is not recovered from, perform one of the following.
• When the sense key is "HARDWARE ERROR [=4]," perform recovery method 1.
• When the sense key is "MEDIUM ERROR [=3]," implement alternate block
allocation processing (shown in Section 6.4).
Note When the original command is the REASSIGN BLOCKS command, it may be
necessary to reconfigure the defect list. For details, see the description of the
REASSIGN BLOCKS command (Section 3.3.2).
13 1) Generate the RESET condition or issue a BUS DEVICE RESET message for the IDD
that reported this error.
2) After waiting 2 seconds or longer, reissue the original command (Retry), and if the
spindle motor's start mode is set on "Start by Command," issue the START instruction
by the START/STOP UNIT command ("Immed" = 0) before retrying.
3) If the retry procedure (() does not terminate normally, perform recovery method 1.
14 1) The MODE SELECT parameter is initialized at the "Save" value (if the "Save" value
does not exist, the "Default" value), so when it is necessary to set the inherent
parameter, issued the MODE SELECT command.
2) Reissue the original command (Retry).
15 1) When not linked from the SET LIMITS command, the cause of this error occurring is
that write operations at the setting terminal are prohibited, so cancel release that and
issue the original command. If it is impossible to release the write protected switch at
the system, perform recovery method 2.
2) When linked from the SET LIMITS command, perform recovery method 2.
16 1) Issue the LOG SENSE command and read the "Current" values in the LOG SELECT
parameters.
2) If the parameters' values are appropriate, reissue the original command.
Note This error could also be caused by a UNIT ATTENTION condition being generated,
caused by a programming error of another INIT, so when the value in the parameter
read in ( is illegal, recovery method 2 should be performed, or the operations of the
other INITs should be confirmed.
17 If the PRIORITY RESERVE command issued by another INIT is proper in the system, performthe
necessary recovery processing in the system. If not, perform recovery method 2.
5-20
Error recovery processing procedures (3 of 5)
Recovery processing procedure
C141-C010