Event Source: ESE
Cause : When you perform an online backup of a storage group, a mailbox store, or a public folder store, the operation may be unsuccessful.
Description : This Warning event indicates that the streaming database specified in the message is corrupted.The .edb and .stm files may be out of sync. An older copy of the .stm file may be in use, and the checksum table in the .edb file is therefore out of date. A program may have altered the .stm file without updating the checksums in the .edb file. There could be problems with the hard disk subsystem or controllers of the system.
E.g.
Information Store (308) The streaming page read from the file "C:\Program Files\Exchsrvr\
mdbdata\prv1.stm" at offset 130646016 (0x0000000007c98000) for 4096 (0x00001000) bytes faled verification due to a page checksum mismatch. The expected checksum was 18463398 (0x000000000af895a6) and the actual checksum was 184063406 (0x000000000af95ae). The read operation will fail with error -613 (0xfffffd9b). If this condition persists then please restore the database from a previous backup.
Action Required :
Take full exchange database backup if database is online, if successfull then restore same from backup immediately, if back is failing then take offline backup of database and perform following.
- Repair database using eseutil /p
- defrag database using eseutil /d
- Run isinteg -s
-fix -test alltests
OR
If exchange version is enterprise then move all mailboxes to new database and repair old database.
Ref.Link :
http://support.microsoft.com/kb/314917/en-us
"We have observed physical errors on the database. It is strongly recommended to repair the database. We will be performing following activities on the server :
- Repair database using eseutil /p
- Defrag database using eseutil /d
- Run isinteg -s
-fix -test alltests
Ref.Link :
- http://support.microsoft.com/?id=318429
- http://support.microsoft.com/?id=814891
- http://support.microsoft.com/kb/840013/en-us
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