Hello,
Refer following technotes.
Title:
Slow throughput while backing up Microsoft Exchange mailboxes
http://support.veritas.com/docs/264851
Title:
Slow backup performance occurs when backing up Microsoft Exchange 2000 and Exchange 2003 servers between 1:00 am and 5:00 am.
http://support.veritas.com/docs/241858
- If you are using the same B2D for two different backups this may affect the performance.
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