The backup of my MS Exchange server has been taking between 4 and 12 hours.
The total store is 50 GB and I am using Windows 2000 SP4+ with Exchange SP3+. The server is connected via 1 GB Ethernet Swtiched to the Backup server and then things are sent to tape (LTO2 tape). The backup agent I am running is Veritas Backup Exec for Windows Server 9.1 with the Exchange Agent.
I run the backup as a combination of Full /Copy backup (flush committed logs) for Exchange and incremental backups on the file servers. On the weekend a full backup is run on both the Exchange box and the file servers.
In the process of debugging the issue (because it seems random), I check the MS logs for application errors and warnings. Nothing appears and the system is running at a whopping 1% CPU utilization. The VM for the mail store is not low and it is generally a week to two weeks before I see the Fragmentation issue (Event ID 9582) in the Applicaiton logs. Per the MS KB, the solution is to restart Exchange and whallah - all is happy. As an experiment, I have restarted the Exchange services before backup to see if that has an effect. Nada.
Any ideas as to what may be happening?