[Gluster-devel] reflink support for glusterfs and gluster-block using it for taking snapshots

[Pranith Kumar Karampuri]

On Tue, Nov 7, 2017 at 5:16 PM, Niels de Vos <ndevos at redhat.com> wrote:

> On Tue, Nov 07, 2017 at 07:43:17AM +0530, Pranith Kumar Karampuri wrote:
> > hi,
> >      I just created a github issue for reflink support
> > <https://github.com/gluster/glusterfs/issues/349>(#349) in glusterfs. We
> > are intending to use this feature to do block snapshots in gluster-block.
> >
> > Please let us know your comments on the github issue. I have added the
> > changes we may need for xlators I know a little bit about. Please help in
> > identifying gaps in implementing this FOP.
>
> For gluster-block it may be easier to have snapshot support in
> tcmu-runner instead? The qcow2 format would be ideal, and is in use by
> different Virtual Machine approaches running on Gluster already. There
> even is an upstream issue open for it:
>   https://github.com/open-iscsi/tcmu-runner/issues/32
>
> Contributing towards this might be quicker than implementing file
> snapshot support in Gluster?
>

We tried that route by talking Fam Zheng, but the solution won't be
delivered in the timelines we are looking for.
So we went with this approach.


>
> Niels
>



-- 
Pranith
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