Re: [Xen-users] Re: LVM on DRBD -OR- DRBD on LVM?

[Simon <greminn@xxxxxxxxx>]

Hi Matthew,

On 6/20/06, Matthew Palmer <mpalmer@xxxxxxxxxxx> wrote:
> On Tue, Jun 20, 2006 at 02:49:48PM +1200, Simon wrote:
> > In creating a "backup" dom0 server using drbd and using lvm partitions
> > for the domU data, whats the best way to implement the drbd part?
> >
> > Should i have drbd mirroring the lvm partitions them selves or the
> > data within them?
>
> Depends.  Primarily, on whether you've going to be sharing the entire PV
> between both machines, and never sharing some LVs with any other host.  If
> you have a separate VG (on it's own PV) for your domUs, and are just
> mirroring your domUs for availability, then mirroring the PVs is fine.
> Otherwise (if you've got the dom0 disk on the same VG) then you'll have to
> mirror the LVs individually, and incur the overhead of lots-o-drbd.
Im only concerned with two individual servers here:

dom0(1) will hold all the domUs
dom0(2) will only be used in a DR case when dom0(1) is down

So reading your above comment.... LVM on DRBD?

Simon

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users