Hi,
Which type of Data is getting backedup When executing a tape backup ?
-database or normal file server data ?
hope following technotes help :
How to correct slow backup performance, slow virus or pre-job scans, and agent initialization problems on fragmented Windows NT, Windows 2000, and Windows 2003 server partitions
http://seer.support.veritas.com/docs/237444.htm
(What Backup Exec settings can be modified to reduce the amount of time it takes for a backup to run?)
http://seer.support.veritas.com/docs/249090.htm
Remote backups performed using agents (Agent for SQL, Agent for Exchange, Remote Agent, etc.) are unresponsive or extremely slow on particular machines.
http://support.veritas.com/docs/190828
Update us on the same and revert for any further Query
Thank you
Gauri