[DRBD-user] Is this configuration a bad idea?

Roland Kammerer roland.kammerer at linbit.com
Thu May 7 11:28:20 CEST 2015

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

On Wed, May 06, 2015 at 08:15:52PM +0300, Dan Craciun wrote:
> Hi,
> I have 2 servers running about 10 OpenVZ containers and 4 KVM VMs, using
> Proxmox as a frontend.
> Both servers have 1TB hdds, mirrored using zfs.
> I'm considering adding high availability to this setup.
> My idea: configure a third server as a backup and use DRBD to mirror the
> data from both servers over the network.

Make sure to understand the implications if you use DRBD as a backup

> In this case, I would create a partition on each server (200-300 GB) and
> use DRBD to constantly mirror data on the third server.
> Is this setup possible? The third server would have 2 different DRBD
> partitions.

As Rabin already wrote, personally, I would use LVM, but from a DRBD
point of view it does not matter.

> What do you recommend running on top of the DRDB partitions? ext4?

DRBD is just an additional layer and by design agnostic to the file
system on top of it. So, it is entirely up to you which FS fits your
needs, there are no official recommendations.

Regards, rck

More information about the drbd-user mailing list