During a vacuum, I ran into this error: vacuumdb: vacuuming of database "friend" failed: ERROR: invalid page header in block 41661 of relation "friend_pkey" I've read the posts on this newsgroup and it's clear that I have to REINDEX to fix this. The bigger question is -- why did this happen in the first place? I'm using open_sync as my WAL_SYNC_METHOD. Is it better to use fsync? Running Suse 9.0 on a Quad Opteron, with direct attached storage. The RAID card is set to write through all of the writes, so I don't think this is a case where the RAID card is lying about a commit. -Akash ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to majordomo@xxxxxxxxxxxxxx)