Error Logging - Fujitsu MAA3182FC Series Manual

Recovery
method
26 1) Issue the LOG SENSE command and read the "Current" values of the LOG
SELECT parameters.
2) Search for any parameter values which exceed the threshold value or have reached
the maximum value, then issue the LOG SELECT command from the INIT and
perform resetting.
3) Reissue the original command.
27 1) Issue the INQUIRY command and read the operation mode information.
2) If the parameter 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 values in the
parameters read in ( are illegal, recovery method 2 should be performed, or the
operations of the other INITs should be confirmed.)
5.2.3

Error logging

In order to collect information that is effective in maintenance, it is desirable for the INIT to
accumulate (log) error information related to the FC interface which it has detected itself
(Loop error, command completion wait time-out, etc.) and error information reported by the
IDD.
By specifying "1" in the PER bit in the "Read/Write Error Recovery parameter (Page 1) and
the "Verify Error Recovery parameter (Page 7) of the MODE SELECT or MODE SELECT
EXTENDED command, the INIT can know of the occurrence of errors which were recovered
from successfully by the IDD's internal error recovery processing and their contents. By
logging that error information, the INIT can obtain data for more detailed analysis of the disk
drive's operating condition.
Concerning the contents of the error log, it is recommended that the data have a time stamp
affixed so that they can be edited in a time series of the times the errors were detected, and that
they include the following information.
•
The source which issued the command and the ID of the device which was the target of the
command.
•
The CDB which was issued.
•
The receiving status, or, when the status was that the command could not be received, the
code showing the type of error detected by the INIT and its content.
•
All bytes reported by the IDD.
Table 5.4 Error recovery procedure (5 of 5)
Recovery processing procedure
C141-E054-02EN 5 - 19