Hi Jerry, Thanks for the suggestion Yes, until about a month ago, we weren't wrapping our snapshots with pg_start_backup and pg_stop_backup. Same reason as you mentioned, the database would start up and "trivial checks" would be okay, and so we figured "why write a script?". However we did change that a month or so ago ago, and have had the problem after that. Every snapshot we have tried to actually recover from has been wrapped in a pg_start_backup and pg_stop_backup, so we are leaning more towards server/disk corruption at this time. We also synced our snapshot to an alternate SAN, and ran a script to update every row of every table, and do a full vacuum and reindex of every table, and there were no error messages about bad blocks. Thanks, Karthik -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general