[Users] RAID1 mirror on ovirt-node + engine nfs server

[Jason Keltz]

Hi.

I've been reading about ovirt, and ready to try my own experiments with 
it.  I have two small questions..

When an ovirt-node is installed from the standard ISO, there's no 
mention in the documentation about setting up a RAID1 mirror for the 
root disk on the node.  I'm sure that once I get around to working out 
kickstarting the node, I could easily install the raid1 mirror, but I'm 
just wondering why I don't see that in the default ISO. Maybe I'm just 
missing something.  Is redundancy of the disk on the node not 
important?  Sure, if the node goes down, I guess the VMs could be run on 
other nodes, but if we can prevent the node from going down in the first 
place, then why not?

I also have a question about the storage backend.  In particular, I have 
a pretty powerful server that I intend to use as the NFS server, and a 
few servers to use as nodes.  On the other hand, I don't have a powerful 
machine (at the moment) to use for the ovirt-engine.  Would it be poor 
practice to run the ovirt-engine ON the NFS server?  During engine 
setup, I see that you can setup an NFS share for ISOs from the 
ovirt-engine, but I don't think there's mention of just generalized 
storage there.  I suspect it's "poor practice", but I thought I'd ask 
anyway.   My setup will be relatively small (say, 4 nodes), and this 
would let me reduce 1 general server from the infrastructure (dedicated 
ovirt-engine).

Thanks! :)

Jason.

ps: At the moment, I am not subscribed to users - please cc: me on 
responses.