[DRBD-user] DRBD over ZFS - or the other way around?

Gionatan Danti g.danti at assyoma.it
Thu Sep 7 00:01:13 CEST 2017

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

Il 06-09-2017 16:22 David Bruzos ha scritto:
> I've used DRBD devices on top of ZFS zvols for years now and have been
> very satisfied with the performance and possibilities that that
> configuration allows for.  I use DRBD 8.x on ZFS latest mainly on Xen
> hypervisors running a mix a Linux and Windows VMs with both SSD and
> mechanical drives.  I've also done similar things in the past with
> DRBD and LVM.  The DRBD on ZFS conbination is the most flexible and
> elegant.  You can use snapshotting and streams to do data migrations
> across the Internet with minimal down time while getting storage level
> redundancy and integrity from ZFS and realtime replication from DRBD.
> A few scripts can automate the creation/removal of devices and
> coordinate VM migrations and things will just work.  Also, you can
> then use ZFS streams for offsite backups (if you need that kind of
> thing).
> Another thing is that you may not need the realtime replication for
> some workloads, so in those cases you can just run directly on ZFS and
> omit the DRBD device.  At least for me, that great flexibility is what
> makes running my own configuration worth it.
> Just my 25 cents!
> David

Hi David,
thank you for your input. It was greatly appreciated.


Danti Gionatan
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Assyoma S.r.l. - www.assyoma.it
email: g.danti at assyoma.it - info at assyoma.it
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