Hi All,
Customer had has some issues with an OES 2015 server rebooting, and some corrupt user databases in Groupwise. On investigation we have found a few files in the Groupwise PO ofmsg directory with the extension msgxx.$er where xx is the msg database number. These files appear to be error files, and I think they are created by NSS, so wanted to confirm.

They contain the following info (example).

BAD BLOCK
Logical File Number: 32001
Logical File Type: Domain
Level in B-Tree: 0
Block Address: 46321664
Parent Block Address: 33148928
Error Number: 34
BAD_BLK_HDR_BLK_END

Given the the backing storage is a highly redundant clustered SAN storage system, showing no errors, and if this is NSS I would guess it implies there is a bad block on the storage, which just show not be able to happen given all the error checking that this clustered array does?

All help would be appreciated.

Thanks,
Mark Currie