EMS Messages with no apparent cause

[Patrick Murphy]

I have a L2000 running HP-UX 11.0 with several disk enclosures attached. I am receiving an EMS message everyday at about the same time for all disks in the enclosures. I have performed the basic checks as suggested in the HP document that the EMS message points you to. The users are experiencing no problems accessing information on these disks. I have also used the set_fixed command to clear the messages but they return the next day.

Attached is the text of the message received for one disk. We have made no changes to the system hardware when the messages started. The messages started about the time when we were experiencing intermittent power outages but the room battery should have handled these.

Any suggestions as to what is really going on or what, specifically, to check?

[Phil Daws_2]

Is anything in syslog? Have you started up STM and ran checks on the disks and interfaces? See if LogTool is reporting anything else as well.

[Jeff Machols]

verify all your scsi addresses, make sure there are no duplicates, really look at the scsi cards if the enclosures are attached to multiple machines

[S.K. Chan]

A few thing to check first ..
1) /dev/diag/diag0
==> make sure it exists
2) Do
# diskinfo
on all your disks. Does it hang on you ?

If 1 & 2 are ok then you need to make a call to HP response center. I think you might have a defective system board. The symptom of that is EMS keep reporting disk errors for all the disks.