[Gluster-users] What is the recommended backup strategy for GlusterFS?

[Mathieu Chateau]

Hello,

for my needs, it's about having a simple "photo" of files present 5 days
ago for example.
But i do not want to store file data twice, as most file didn't change.
Using snapshot is convenient of course, but it's risky as you loose both
data and snapshot in case of failure (snapshot only contains delta blocks).
Rsync with hardlink is more resistant (inode stay until last reference is
removed)

But interested to hear about production setup relying on it

Cordialement,
Mathieu CHATEAU
http://www.lotp.fr

2015-09-05 21:03 GMT+02:00 M S Vishwanath Bhat <msvbhat at gmail.com>:

> MS
> On 5 Sep 2015 12:57 am, "Mathieu Chateau" <mathieu.chateau at lotp.fr> wrote:
> >
> > Hello,
> >
> > so far I use rsnapshot. This script do rsync with rotation, and most
> important same files are stored only once through hard link (inode). I save
> space, but still rsync need to parse all folders to know for new files.
> >
> > I am also interested in solution 1), but need to be stored on distinct
> drives/servers. We can't afford to loose data and snapshot in case of human
> error or disaster.
> >
> >
> >
> > Cordialement,
> > Mathieu CHATEAU
> > http://www.lotp.fr
> >
> > 2015-09-03 13:05 GMT+02:00 Merlin Morgenstern <
> merlin.morgenstern at gmail.com>:
> >>
> >> I have about 1M files in a GlusterFS with rep 2 on 3 nodes runnnig
> gluster 3.7.3.
> >>
> >> What would be a recommended automated backup strategy for this setup?
> >>
> >> I already considered the following:
>
> Have you considered glusterfs geo-rep? It's actually for disaster
> recovery. But might suit your backup use case as well.
>
> My two cents
>
> //MS
>
> >>
> >> 1) glusterfs snapshots in combination with dd. This unfortunatelly was
> not possible so far as I could not find any info on how to make a image
> file out of the snapshots and how to automate the snapshot procedure.
> >>
> >> 2) rsync the mounted file share to a second directory and do a tar on
> the entire directory after rsync completed
> >>
> >> 3) combination of 1 and 2. Doing a snapshot that gets mounted
> automaticaly and then rsync from there. Problem: How to automate snapshots
> and how to know the mount path
> >>
> >> Currently I am only able to do the second option, but the fist option
> seems to be the most atractive.
> >>
> >> Thank you for any help on this.
> >>
> >> _______________________________________________
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> >> Gluster-users at gluster.org
> >> http://www.gluster.org/mailman/listinfo/gluster-users
> >
> >
> >
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>
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