[openstack-dev] [cinder] backups need reserved space for LVM snapshots: do we have it implemented already?

Erlon Cruz sombrafam at gmail.com
Fri Jun 15 13:59:52 UTC 2018


Hi Thomas,

Yes. If you have more than 1 volume node, or 1 volume node with multiple
backends definitions. Each volume node should have at least one [backend]
that will point to your storage configuration. You can add that config for
each of them.

Erlon

Em sex, 15 de jun de 2018 às 09:52, Thomas Goirand <zigo at debian.org>
escreveu:

> On 06/14/2018 01:10 PM, Erlon Cruz wrote:
> > Hi Thomas,
> >
> > The reserved_percentage *is* taken in account for non thin provisoning
> > backends. So you can use it to spare the space you need for backups. It
> > is a per backend configuration.
>
> Oh. Reading the doc, I thought it was only for thin provisioning, it's
> nice if it works with "normal" cinder LVM then ... :P
>
> When you say "per backend", does it means it can be set differently on
> each volume node?
>
> > If you have already tried to used it and that is not working, please let
> > us know what release you are using, because despite this being the
> > current (and proper) behavior, it might not being like this in the past.
> >
> > Erlon
>
> Will do, thanks.
>
> Cheers,
>
> Thomas
>
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