On 13/03/2008, Hugo Mills <hugo@???> wrote:
> On Thu, Mar 13, 2008 at 12:29:39PM +0000, Richard Danter wrote:
> > With all this virtualisation talk I was wondering if anyone has tried
> > running multiple instances of QEMU on one host simultaneously?
>
>
> Yes, I routinely run two or three qemu (KVM) instances on my
> laptop.
Does KQEMU work just as well?
>
>
> > What I would like to emulate is a cluster with each QEMU node able to
> > talk to all the others in the cluster plus the host via normal
> > networking. I assume this should be possible but has anyone already
> > done this and have any notes? Any gotchas to watch out for?
>
>
> Should be fine. You'll need a bridged network setup, but those seem
> to work out of the box these days.
OK.
>
>
> > Obviously performance is not going to be great, but I just don't have
> > 8 PC's sitting round at the moment. :o(
>
>
> What exactly are you trying to do with this setup? Why do you need
> 8 separate machines?
I want to emulate a rack system. In that system there are up to 8
blades. Two blades have HDD's with a replicated filesystem for
redundancy. The remaining blades mount their roots from one of these
two blades currently using NFS. I want to experiment with iSCSI, DRBD,
CLVM, EVMS, GFS, OCFS2, ... and since the hardware is rather expensive
I was wondering if QEMU would be a suitable alternative. I don't want
to use VMware or Xen as not all the blades are x86.
Rich
