<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">From: Jason Keltz <<a href="mailto:jas@cse.yorku.ca">jas@cse.yorku.ca</a>><br>
To: <a href="mailto:users@ovirt.org">users@ovirt.org</a><br>
Subject: [Users] RAID1 mirror on ovirt-node + engine nfs server<br>
Message-ID: <<a href="mailto:51D5A06E.10504@cse.yorku.ca">51D5A06E.10504@cse.yorku.ca</a>><br>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed<br>
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Hi.<br>
<br>
I've been reading about ovirt, and ready to try my own experiments with<br>
it. I have two small questions..<br>
<br>
When an ovirt-node is installed from the standard ISO, there's no<br>
mention in the documentation about setting up a RAID1 mirror for the<br>
root disk on the node. I'm sure that once I get around to working out<br>
kickstarting the node, I could easily install the raid1 mirror, but I'm<br>
just wondering why I don't see that in the default ISO. Maybe I'm just<br>
missing something. Is redundancy of the disk on the node not<br>
important? Sure, if the node goes down, I guess the VMs could be run on<br>
other nodes, but if we can prevent the node from going down in the first<br>
place, then why not?<br>
<br></blockquote><div style>Kickstarting the Node is an interesting proposition, but not one that the current image is well-suited for. Nor is support for mdraid devices, to be honest. It's something worth considering (whether btrfs redundancy or mdraid), but it's not currently implemented to my knowledge. I could be wrong about that.</div>
<div style><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I also have a question about the storage backend. In particular, I have<br>
a pretty powerful server that I intend to use as the NFS server, and a<br>
few servers to use as nodes. On the other hand, I don't have a powerful<br>
machine (at the moment) to use for the ovirt-engine. Would it be poor<br>
practice to run the ovirt-engine ON the NFS server? During engine<br>
setup, I see that you can setup an NFS share for ISOs from the<br>
ovirt-engine, but I don't think there's mention of just generalized<br>
storage there. I suspect it's "poor practice", but I thought I'd ask<br>
anyway. My setup will be relatively small (say, 4 nodes), and this<br>
would let me reduce 1 general server from the infrastructure (dedicated<br>
ovirt-engine).<br></blockquote><div><br></div><div style>I run the engine virtualized as a guest on the NFS server. This is definitely a workable use case, especially for small environments.</div></div></div></div>