Networker

[Networker] Two clients sharing an index?

2004-01-28 00:07:22
Subject: [Networker] Two clients sharing an index?
From: "W. Curtis Preston" <curtis.lists AT THESTORAGEGROUP DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Tue, 27 Jan 2004 21:07:10 -0800
This is one for the gurus.  I know this will sound goofy, but if it doesn't
work, these folks are going to dump NetWorker entirely.  They're happy
overall, except for this one problem.  That would seem to be a waste to me.
It may seem like a NetWare question, but it's really not.  If you're a
networker guru, read on.

Suppose I had two or three (NetWare cluster) clients that all shared the
same clustered volume, but the volume was only resident on one client at a
time -- and it moved around all the time.  By default, if I'm backing up
each node in the cluster (which I'm forced to do because NetWorker doesn't
really support NetWare clusters), I'd force a full (or large incremental)
every time the volume moved.  
What would happen if I:

1. Create two or three client definitions (one per clustered node), copying
the same client ID to each one.
2. I put just this volume as the saveset entry for each client.
3. Symbolicly linked all three client indexes together:
   cd /nsr/index
   rm -r node2 node3
   ln -s node2 node1
   ln -s node3 node1
4. Now whenever I back up this volume on node1, node2, or node3, it shares
the same index.
5. This way, when the clustered volume moves from node1 to node2, it backs
up the right stuff.

Am I nuts?  Has anyone done this?  Will it flat out not work?  Might it
work?  Can I have two clients share an index like that?

What about the non-clustered stuff on these nodes, like the system volume?
Well, I do this:
1. Create a virtual IP address on each netware server.
2. Create a virtual hostname for each one (e.g. node1system) that points to
the virtual IP address.
3. Create a client definition for that nodename that backs up everything BUT
the clustered volumes.

Yes, this will cost me a client index per node.  I'll live with that.

Am I nuts?

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