Extremely slow backup of Exchange Svr 2003

[techdiva]

This is posted in BE forum also: Exchange svr 2003 w/ Backup Exec 9.0 - usually takes about 4 hours each night, but about once a week (usually on Tuesday nights - but not always) the backup time for the Exchange mailboxes extends to 10 hours. Backups were running at 10:00 p.m. so moved them up to 9:00 p.m., and set Online defrag to run at 3:00 a.m., thus giving a 6 hour window between backup and online defrag. But it didn't help because last night, it happened AGAIN!! Checked virus scan activity and that wasn't the culprit either...
Is an upgrade of BE in order? I'm fairly new at Exchange so ANY info is helpful!!!

 

[pschwarz]

Check for changes in activity on your Exchange server... perhaps Auto-Update security installs, or new Virus definition downloads/scans? Something that is happening during this time frame, yet is happening on different nights.

 

[techdiva]

You were on the money (and sorry it took so long to post this) - it happened that everytime AV did a live update, it was set to perform a scan immediately following the update. Since we scan incoming and outgoing mail anyway, I went ahead and disabled the 'Scan after Update' feature and smooth sailing since. Thanks!