[Gluster-users] GlusterFS on ZFS

[Dave Pedu]

Do check this doc:

https://docs.gluster.org/en/latest/Administrator%20Guide/Gluster%20On%20ZFS/#build-install-zfs

In particular, the bit regarding xattr=sa. In the past, Gluster would 
cause extremely poor performance on zfs datasets without this option 
set. I'm not sure if this is still the case.

- Dave

On 2019-04-16 15:09, Cody Hill wrote:
> Hey folks.
> 
> I’m looking to deploy GlusterFS to host some VMs. I’ve done a lot of
> reading and would like to implement Deduplication and Compression in
> this setup. My thought would be to run ZFS to handle the Compression
> and Deduplication.
> 
> ZFS would give me the following benefits:
> 1. If a single disk fails rebuilds happen locally instead of over the 
> network
> 2. Zil & L2Arc should add a slight performance increase
> 3. Deduplication and Compression are inline and have pretty good
> performance with modern hardware (Intel Skylake)
> 4. Automated Snapshotting
> 
> I can then layer GlusterFS on top to handle distribution to allow 3x
> Replicas of my storage.
> My question is… Why aren’t more people doing this? Is this a horrible
> idea for some reason that I’m missing? I’d be very interested to hear
> your thoughts.
> 
> Additional thoughts:
> I’d like to use Ganesha pNFS to connect to this storage. (Any issues 
> here?)
> I think I’d need KeepAliveD across these 3x nodes to store in the
> FSTAB (Is this correct?)
> I’m also thinking about creating a “Gluster Tier” of 512GB of Intel
> Optane DIMM to really smooth out write latencies… Any issues here?
> 
> Thank you,
> Cody Hill
> 
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