[Scottish] Virtual machines

Philip Ward philward at bigfoot.com
Thu Jul 26 15:28:12 BST 2007

You wouldn't have to keep the backup VM running all the time. Set the
VM to start the backups automatically on boot up and shutdown when
finished, then cron your dom0 to start the VM.


On 26/07/07, Kevin Campbell <kev at projectcolo.org.uk> wrote:
> On Thu, Jul 26, 2007 at 02:58:44PM +0100, Phillip Bennett wrote:
> > Hi everyone,
> >
> > I will be buying a new server in the next couple of months and would like
> > to put a VM on it to get rid of one of our other servers.  The new server
> > will be our main file server.  It will be running ldap, samba and DNS, but
> > mainly just serving files.  It will also be a domain master for our
> > network.  I'm looking to get two quad core xeons and 8GB RAM.
> >
> > What I'm thinking of is running our backup server in a VM instead of an
> > actual machine.  It only ever does any work after hours, when the other
> > machines are idle, so I figure they shouldn't interfere with each other.
> > Does this sounds like a viable idea to everyone?  Or should I not bother.
> > I'm worried about the performance hit the machine could take during the
> > day, but as I'm not a VM expert, I figure there shouldn't be too much, as
> > the VM would be doing very little (if anything).
> >
> > If this sounds viable, which VM would people recommend?  I'm thinking of
> > either Xen, VMware or KVM.  KVM would be harder, as I'll be running RHEL 4
> > or 5 on it.
> Xen is relatively stable and will do what you need. The overheads are
> small, but it would also add overheads to your fileserver, not just to
> the backup virtual machine.
> K
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