I have to admit, I have great personal reservations towards virtualising backup servers. There’s a simple, fundamental reason for this: the backup server should have as few dependencies as possible in an environment. Therefore to me it seems completely counter-intuitive to make the backup server dependent on an entire virtualisation layer existing before it can be used.
For this reason I also have some niggling concerns with running a backup server as a blade server.
Personally, at this point in time, I would never willingly advocate deploying a NetWorker server as a virtual machine (except in a lab situation) – even when running in director mode.
Let me qualify: I consider ‘director’ mode to be where the NetWorker server acts almost like a dedicated storage node – it only backs up its own index/bootstrap information; with all other backups in the datazone being sent to storage nodes. Hence, as much as possible, all it is doing is ‘directing’ the backups.
But I’m keen to understand your thoughts on the matter.
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