| ERROR | Report of files that need backup due to unrecoverable operations |
| CAUSE | An unlogged change (such as create table unrecoverable) has been made to this file, and the most recent backup of the file does not contain those changes. |
| ACTION | Take a backup of this file. If this file is lost before a backup is taken, then the unlogged modifications will be lost. The message indicates whether a full backup is required or whether a incremental backup will suffice. |