Not that I notice, perhaps a more trained eye? Here's the log from when i started the backup to where it fails.
May 12 19:04:36 server com.apple.backupd[8945]: Starting standard backup
May 12 19:04:37 server com.apple.backupd[8945]: Backing up to: /Volumes/Time Machine/Backups.backupdb
May 12 19:04:53 server ServerBackup[8946]: Error in calling backup command for service postgresql, error :=69
May 12 19:04:53 server ServerBackup[8946]: SRC := /etc/apache2/
DST := /.ServerBackups/webServer
May 12 19:04:53 server ServerBackup[8946]: SRC := /etc/certificates/
DST := /.ServerBackups/webServer
May 12 19:05:48 server com.apple.launchd.peruser.501[189] (com.hp.devicemonitor[9165]): posix_spawn("/Library/Printers/hp/hpio/HP Device Monitor.app/Contents/MacOS/HP Device Monitor", ...): No such file or directory
May 12 19:05:48 server com.apple.launchd.peruser.501[189] (com.hp.devicemonitor[9165]): Exited with code: 1
May 12 19:05:48 server com.apple.launchd.peruser.501[189] (com.hp.devicemonitor): Throttling respawn: Will start in 10 seconds
May 12 19:06:23 server DashboardClient[9172]: com.apple.widget.ServerStatus: Connecting to server...
May 12 19:06:23 server com.apple.Dock.agent[252]: 2012-05-12 19:06:23.617 DashboardClient[9172:403] com.apple.widget.ServerStatus: Connecting to server...
May 12 19:06:23 server DashboardClient[9172]: com.apple.widget.ServerStatus: Authentication failed: -105
May 12 19:06:23 server com.apple.Dock.agent[252]: 2012-05-12 19:06:23.888 DashboardClient[9172:403] com.apple.widget.ServerStatus: Authentication failed: -105
May 12 19:07:18 server DashboardClient[9172]: com.apple.widget.ServerStatus: Connecting to server...
May 12 19:07:18 server com.apple.Dock.agent[252]: 2012-05-12 19:07:18.838 DashboardClient[9172:403] com.apple.widget.ServerStatus: Connecting to server...
May 12 19:07:19 server DashboardClient[9172]: com.apple.widget.ServerStatus: Authentication failed: -105
May 12 19:07:19 server com.apple.Dock.agent[252]: 2012-05-12 19:07:19.038 DashboardClient[9172:403] com.apple.widget.ServerStatus: Authentication failed: -105
May 12 19:07:27 server com.apple.backupd[8945]: 153.64 TB required (including padding), 594.61 GB available
May 12 19:07:27 server com.apple.backupd[8945]: No expired backups exist - deleting oldest backups to make room
May 12 19:07:27 server mds[87]: (Error) Volume: Could not find requested backup type:2 for volume
May 12 19:07:28 server com.apple.launchd.peruser.501[189] (com.hp.devicemonitor[9207]): posix_spawn("/Library/Printers/hp/hpio/HP Device Monitor.app/Contents/MacOS/HP Device Monitor", ...): No such file or directory
May 12 19:07:28 server com.apple.launchd.peruser.501[189] (com.hp.devicemonitor[9207]): Exited with code: 1
May 12 19:07:28 server com.apple.launchd.peruser.501[189] (com.hp.devicemonitor): Throttling respawn: Will start in 10 seconds
May 12 19:07:38 server com.apple.backupd[8945]: Backup failed with error: Not enough available disk space on the target volume.
