Do you know what the impact on the filer is? Does the "media server filer"

need to have extra CPU capacity or disk capacity? I asked the following of Grant Melvin of Network Appliance:

This is one thing we are considering:

Another plan is to have a storagetek with NDMP media servers... say we have the

L700 with 20 tape drives, with OnTap 5.3 I can have 5 filers driving those 20 tape drives (two tape adapters per filer, two drives per tape adapter). These are now my "NDMP" media servers. The backups would go across a dedicated GB network.

So, with NBU 3.2 I can do the filer to filer backups through these filer media

servers, right?

Yes.

A 3-way backup is automatic when you refer to a storage unit on a different NDMP host than the data host.

My question is: what impact is this operation on the filer -- both CPU/disk

space needs, etc? What is the minimum filer I could use as these media servers -- little 720's with one shelf/minimal disk? or would this require a beefier filer?

There isn't any disk space impact on the tape agent host (at least as far as I am aware). The NDMP server is just moving data from the network to the tape drive.

Someone from NetApp would be a better source for what CPU resources would be needed.

Note that even if NetBackup supported backup to NBU media servers you would still have the impact - its just moved from a filer to the NetBackup media server.

__________________________________________________________________________ Steve Kappel steve.kappel@veritas.com VERITAS Software steve.kappel@iname.com (Personal)