You would need to specify a storage node in the client config.  This
will force those clients to backup to the storage node. 

-----Original Message-----
From: Legato NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
On Behalf Of Jim Ruskowsky
Sent: Monday, May 08, 2006 9:28 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] Balancing load between storage nodes

Hello list

Maybe somebody can offer some advice on the following situation.

The setup....

We have 10 tape drives in a single library attached to a fibre switch.

We have two networker servers (master and storage node) attached to that
same switch - each server has two paths to that same switch.

The fabric is configured so that each tape drive can be seen on both
paths on each networker server.  We have dynamic drive sharing licensed
for all 10 drives.

So for example, drive #0 has four distinct paths according to networker
        /dev/rmt/0cbn   (master server, first fibre channel)
        /dev/rmt/10cbn  (master server, second fibre channel)
        rd=jcnetworker2:/dev/rmt/0cbn   (storage node, first fibre 
channel)
        rd=jcnetworker2:/dev/rmt/10cbn  (storage node, second fibre
channel)

The tape pool "DAILY" is set up as default with no specific devices
checked off (so all drives should be used)

The problem....

When a savegroup runs, the server only uses the drives attached to the
master server - ignoring the existence of the storage node.  I ended up
trying to write to 10 LTO3 drives down a single fibre channel.  What is
the best way to load balance between all my paths.  I've tried
specifically checking off specific paths to devices in the tape pool
setup, but then it just picks a path to the master server and ignores
the rest.

Thanks for any help.

Jim




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