[DRBD-user] DRBD and KVM for a HA-Cluster ?

J. Ryan Earl oss at jryanearl.us
Thu Jan 6 18:45:01 CET 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Thu, Jan 6, 2011 at 11:01 AM, Lentes, Bernd <
bernd.lentes at helmholtz-muenchen.de> wrote:

> Digimer wrote:
> > >>
> > >
> > > I don't want to setup a DRBD as a PV. My idea is to set up
> > a DRBD on top of a LV, and to format or not format this LV,
> > depending on the decision to install a KVM into a file or a
> > plain device.
> > > Is this setup ok ?
> >I don't want to use a DRBD as a PV.
>
> My setup is like that:
>
> <hardware raid>
>  |
> <partition>
>  |
> <PV(s)>
>  |
> <VG>
>  |
> <LV(s)>
>  |
> <DRBD>
>  |
> <FS or vm in a plain LV>
>
>
> This should work ?
> Which setup did you discuss with RH ? Your old one or mine ?


He talked about his.  Your setup is fine.  You can use the DRBD devices
directly as disks for VMs, it is in fact a great practice with
dual-primaries.  Using a file on a filesystem for the VM disk will add
considerable overhead and complication.

-JR
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