[DRBD-user] DRBD + ZFS

Eric Robinson eric.robinson at psmnv.com
Thu Aug 19 17:53:05 CEST 2021

> -----Original Message-----
> From: Emmanuel Florac <eflorac at intellique.com>
> Sent: Thursday, August 19, 2021 8:16 AM
> To: Eric Robinson <eric.robinson at psmnv.com>
> Cc: drbd-user at lists.linbit.com
> Subject: Re: [DRBD-user] DRBD + ZFS
> Le Wed, 18 Aug 2021 03:39:01 +0000
> Eric Robinson <eric.robinson at psmnv.com> écrivait:
> > I'm considering deploying DRBD between ZFS layers. The lowest layer
> > RAIDZ will serve as the DRBD backing device. Then I would build
> > another ZFS filesystem on top to benefit from compression. Any
> > thoughs, experiences, opinions, positive or negative?
> But isn't ZFS implementing its own replication layer? Why go the DRBD route
> instead?

I'm not well read on ZFS, but I believe ZFS uses periodic scheduled replication, not real-time block-level replication. ZFS does not have an equivalent to DRBD protocol C. Am I mistaken?


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