[DRBD-user] DRBD + ZFS

Noah Mehl noah at tritonlimited.com
Fri Nov 4 22:19:16 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.


I guess my biggest question is why you want ZFS in the first place.  If you don't need compression and deduplication, then the easiest (I'm assuming, since you know linux) approach would be a redundant DRBD cluster with NFS.  Checkout this guide for that here:


I'm sure the people on this list would be happy to help you achieve that goal.  If you are more interested in ZFS specific features, feel free to email me off-list.  Thanks.


On Nov 4, 2011, at 3:57 PM, Tobias Verbeke wrote:

> Hi Noah,
> On 11/04/2011 06:41 PM, Noah Mehl wrote:
>> Yes, theoretically, you could use drbd as primary/secondary as backing for ZFS.  But I would caution you against using ZFS on linux.  THIS IS NOT MATURE, and the people who made it usable haven't worked on it since April.  So, it doesn't look like it's actively supported.  I would NEVER use this on a production system.  Instead consider using OpenIndiana and ZFS send and receive instead.
> Many thanks for your insights. I saw some commit history at
> https://github.com/zfsonlinux/zfs
> but must admit I already experienced some surprising behaviour,
> so thanks again for sharing your assessment!
> Would ZFS send and receive be sufficient to take one system down
> for maintenance while the other 'automagically' takes over serving
> NFS or would that require some extra tools that come with OpenIndiana ?
> Best,
> Tobias
>> On Nov 4, 2011, at 1:31 PM, Tobias Verbeke wrote:
>>> Dear list,
>>> We currently set up a storage server,
>>> using Ubuntu + ZFS kernel module and
>>> serve filesystems using NFS.
>>> Would DRBD be a solution to mirror this
>>> system and move towards a high-availability
>>> setup for storage or would I need to
>>> sacrifice ZFS ?
>>> Many thanks in advance for any pointer.
>>> Best,
>>> Tobias
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