Hello,
If you need to backup server B from server A ,you need to upgrade server A to ver 10.0.
Please refer to the software compatibility list given below.
(title) Backup Exec 10.0 for Windows Servers - Software Compatibility List (SCL)
http://support.veritas.com/docs/264484
If you are upgrading from 9.1 to 10.0 then you wouldnt be able to use the old license. However if you perform a fresh install then you can use the current licenses as well.
thanks.
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