[PVE-User] pve-csync version of pve-zsync?

Mark Adams mark at openvs.co.uk
Tue May 15 00:13:03 CEST 2018


Hi Alexandre,

Did you ever get a chance to take a look at this?

Regards,
Mark

On 13 March 2018 at 18:32, Alexandre DERUMIER <aderumier at odiso.com> wrote:

> Hi,
>
> I have plans to implement storage replication for rbd in proxmox,
> like for zfs export|import.  (with rbd export-diff |rbd import-diff )
>
> I'll try to work on it next month.
>
> I'm not sure that currently a plugin infrastructe in done in code,
> and that it's able to manage storages with differents name.
>
> Can't tell if it'll be hard to implement, but the workflow is almost the
> same.
>
> I'll try to look also at rbd mirror, but it's only work with librbd in
> qemu, not with krbd,
> so it can't be implemented for container.
>
>
> ----- Mail original -----
> De: "Mark Adams" <mark at openvs.co.uk>
> À: "proxmoxve" <pve-user at pve.proxmox.com>
> Envoyé: Mardi 13 Mars 2018 18:52:21
> Objet: Re: [PVE-User] pve-csync version of pve-zsync?
>
> Hi Alwin,
>
> I might have to take another look at it, but have you actually done this
> with 2 proxmox clusters? I can't remember the exact part I got stuck on as
> it was quite a while ago, but it wasn't as straight forward as you
> suggest.
> I think you couldn't use the same cluster name, which in turn created
> issues trying to use the "remote" (backup/dr/whatever you wanna call it)
> cluster with proxmox because it needed to be called ceph.
>
> The docs I was referring to were the ceph ones yes. Some of the options
> listed in that doc do not work in the current proxmox version (I think the
> doc hasn't been updated for newer versions...)
>
> Regards,
> Mark
>
> On 13 March 2018 at 17:19, Alwin Antreich <a.antreich at proxmox.com> wrote:
>
> > On Mon, Mar 12, 2018 at 04:51:32PM +0000, Mark Adams wrote:
> > > Hi Alwin,
> > >
> > > The last I looked at it, rbd mirror only worked if you had different
> > > cluster names. Tried to get it working with proxmox but to no avail,
> > > without really messing with how proxmox uses ceph I'm not sure it's
> > > feasible, as proxmox assumes the default cluster name for
> everything...
> > That isn't mentioned anywhere in the ceph docs, they use for ease of
> > explaining two different cluster names.
> >
> > If you have a config file named after the cluster, then you can specifiy
> > it on the command line.
> > http://docs.ceph.com/docs/master/rados/configuration/
> > ceph-conf/#running-multiple-clusters
> >
> > >
> > > Also the documentation was a bit poor for it IMO.
> > Which documentation do you mean?
> > ? -> http://docs.ceph.com/docs/master/rbd/rbd-mirroring/
> >
> > >
> > > Would also be nice to choose specifically which VM's you want to be
> > > mirroring, rather than the whole cluster.
> > It is done either per pool or image separately. See the link above.
> >
> > >
> > > I've manually done rbd export-diff and rbd import-diff between 2
> separate
> > > proxmox clusters over ssh, and it seems to work really well... It
> would
> > > just be nice to have a tool like pve-zsync so I don't have to write
> some
> > > script myself. Seems to me like something that would be desirable as
> part
> > > of proxmox as well?
> > That would basically implement the ceph rbd mirror feature.
> >
> > >
> > > Cheers,
> > > Mark
> > >
> > > On 12 March 2018 at 16:37, Alwin Antreich <a.antreich at proxmox.com>
> > wrote:
> > >
> > > > Hi Mark,
> > > >
> > > > On Mon, Mar 12, 2018 at 03:49:42PM +0000, Mark Adams wrote:
> > > > > Hi All,
> > > > >
> > > > > Has anyone looked at or thought of making a version of pve-zsync
> for
> > > > ceph?
> > > > >
> > > > > This would be great for DR scenarios...
> > > > >
> > > > > How easy do you think this would be to do? I imagine it wouId it
> be
> > quite
> > > > > similar to pve-zsync, but using rbd export-diff and rbd
> import-diff
> > > > instead
> > > > > of zfs send and zfs receive? so could the existing script be
> > relatively
> > > > > easily modified? (I know nothing about perl....)
> > > > >
> > > > > Cheers,
> > > > > Mark
> > > > > _______________________________________________
> > > > > pve-user mailing list
> > > > > pve-user at pve.proxmox.com
> > > > > https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
> > > > Isn't ceph mirror already what you want? It can mirror a image or a
> > > > whole pool. It keeps track of changes and serves remote image
> deletes
> > > > (adjustable delay).
> > > >
> >
> > _______________________________________________
> > pve-user mailing list
> > pve-user at pve.proxmox.com
> > https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
> >
>


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