The standard tape backup script keeps a number of log files that are accessible to the system administrator. To view the log files, log into your server as root and run the following commands. You may also configure the backup script to send an email every time the backup is run.
/tmp/backup.bak contains the output from the last successful tape backup command
more /tmp/backup.bak
The log for a successful tape backup will show output similar to the following:
Backing up to /dev/rmt0. Cluster 51200 bytes (100 blocks). Volume 1 on /dev/rmt0 The total size is 19986274993 bytes. Backup finished on Tue Sep 7 18:11:20 CDT 2010; there are 39071600 blocks on 1 volumes.
/tmp/backup.chk contains the start and stop timestamps for the tape backup operation
more /tmp/backup.chk
The following log file indicates the backup ran for 30 minutes.
Backup started at: Mon Feb 22 21:00:05 EST 2010 Backup ended at: Mon Feb 22 21:30:11 EST 2010
/tmp/backup.err contains any potential error messages from the most recent backup
more /tmp/backup.err
The following log file indicates there was no tape in the drive.
backup: 0511-089 Cannot open /dev/rmt0: The device is not ready for operation. Mount volume 1 on /dev/rmt0.
/tmp/snapsave.log logs database suspension and snapshot operations:
less /tmp/snapsave.log
The following log file shows a successful backup and details the database and snapshot operations taking place. This is very useful for troubleshooting backup issues.
-------------------------------------------------------------------------------- Tue Sep 7 21:00:05 CDT 2010: Current snapshot status Snapshots for /u2 Current Location 512-blocks Free Time * /dev/fslv00 163840 50432 Mon Sep 6 21:01:32 CDT 2010 Snapshots for /u2/eclipse Current Location 512-blocks Free Time * /dev/fslv01 2818048 1512448 Mon Sep 6 21:01:39 CDT 2010 Snapshots for /u2/eclipse/ereports Current Location 512-blocks Free Time * /dev/fslv02 32768 32000 Mon Sep 6 21:01:44 CDT 2010 Snapshots for /u2/pdw Current Location 512-blocks Free Time * /dev/fslv03 1835008 1833984 Mon Sep 6 21:01:48 CDT 2010 -------------------------------------------------------------------------------- Tue Sep 7 21:00:16 CDT 2010: Releasing and unmounting previous snapshots Tue Sep 7 21:00:18 CDT 2010: Unmounting /snap/u2/pdw Tue Sep 7 21:00:23 CDT 2010: Removing snapshot(s) of /u2/pdw rmlv: Logical volume fslv03 is removed. Tue Sep 7 21:00:31 CDT 2010: Unmounting /snap/u2/eclipse/ereports Tue Sep 7 21:00:32 CDT 2010: Removing snapshot(s) of /u2/eclipse/ereports rmlv: Logical volume fslv02 is removed. Tue Sep 7 21:00:39 CDT 2010: Unmounting /snap/u2/eclipse Tue Sep 7 21:00:40 CDT 2010: Removing snapshot(s) of /u2/eclipse rmlv: Logical volume fslv01 is removed. Tue Sep 7 21:00:47 CDT 2010: Unmounting /snap/u2 Tue Sep 7 21:00:47 CDT 2010: Removing snapshot(s) of /u2 rmlv: Logical volume fslv00 is removed. -------------------------------------------------------------------------------- Tue Sep 7 21:00:53 CDT 2010: Suspending database -------------------------------------------------------------------------------- Tue Sep 7 21:00:59 CDT 2010: Performing snapshots: Tue Sep 7 21:00:59 CDT 2010: Taking snapshot of /u2 Snapshot for file system /u2 created on /dev/fslv00 Tue Sep 7 21:01:04 CDT 2010: Taking snapshot of /u2/eclipse Snapshot for file system /u2/eclipse created on /dev/fslv01 Tue Sep 7 21:01:11 CDT 2010: Taking snapshot of /u2/eclipse/ereports Snapshot for file system /u2/eclipse/ereports created on /dev/fslv02 Tue Sep 7 21:01:16 CDT 2010: Taking snapshot of /u2/pdw Snapshot for file system /u2/pdw created on /dev/fslv03 -------------------------------------------------------------------------------- Tue Sep 7 21:01:21 CDT 2010: Database suspend released. -------------------------------------------------------------------------------- Tue Sep 7 21:01:21 CDT 2010: Mounting snapshot filesystems Tue Sep 7 21:01:23 CDT 2010: Mounting snapshot: /snap/u2 Tue Sep 7 21:01:25 CDT 2010: Mounting snapshot: /snap/u2/eclipse Tue Sep 7 21:01:27 CDT 2010: Mounting snapshot: /snap/u2/eclipse/ereports Tue Sep 7 21:01:30 CDT 2010: Mounting snapshot: /snap/u2/pdw rmt0 changed Tue Sep 7 21:02:05 CDT 2010: Starting backup from /snap -------------------------------------------------------------------------------- Tue Sep 7 22:40:15 CDT 2010: Mailing backup report --------------------------------------------------------------------------------