The Oracle Solaris Predictive Self-Healing (PSH) fault manager daemon (fmd) can become nonoperational when the Logical Domains Manager (ldmd) is down for a period of time. On SPARC T5 series servers, I/O faults, including disk faults, are diagnosed by the Oracle Solaris fmd. Other faults are diagnosed by Oracle ILOM on the SP and are not affected by this bug.
If a patch with the fix becomes available, you should install the patch. See Obtain Patches.
Workaround: If you suspect that I/O faults are not being reported, perform these steps:
Determine whether or not the ldmd is online.
If ldmd is online, then this bug is not the issue. Refer to the fault management procedures in the SPARC T5-1B Server Module Service Manual.
If ldmd is offline, go to Step 2.
Restart ldmd.
Restart fmd.
View the system log files.
If an I/O fault occurred while the fmd was not running, use information in the log files to isolate the problem.