Hello,
Yes BE v10d on SBS 2003 is capable of back up to a NAS device on the network.
To know more about NAS and its compatibility, please refer to the below mentioned technotes:
Network Attached Storage (NAS) appliance compatibility with Backup Exec 8.x , 9.x, and 10.x.
http://support.veritas.com/docs/237737
How to determine if a Network Attached Storage system is compatible with Backup Exec for Windows Servers
http://support.veritas.com/docs/247059
Hope this helps you.
Regards
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