Using the interconnect for backups???

Hi all, I have a question regarding using the interconnect for backups. Here's the scenario that's been put to me. You have a two-node cluster (node1 and node2). There are 8 global filesystems: 4 owned by node1 and 4 owned by node2. Both nodes can see all 8 filesystems. You want to backup the data on all 8 global filesystems. Can you use node1 to backup all 8 filesystems? That is, node1 backups its own 4 filesystems and uses the interconnect to backup node2's 4 filesystems.
Is this a bad idea? Does it not matter?
Thanks in advance,
Stewart

It would be better to do the backups locally, i.e. all through node1. The reason I say this is that during the backup, you are going to cause I/O contention for the applications using the file system. If you do this remotely, then not only are you impacting the application but you are pulling data across the interconnect and chewing up CPU cycles, etc.
Given that you can move the primary path of a global file system without needing to stop the application, it would be easier to do that, get the backup done more quickly and then migrate the path back than to do it the way you are considering. At least that's my view - though I've not done a bake-off to try out the two options.
Tim
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