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

Thomas Goirand zigo at debian.org
Fri Jun 15 12:52:03 UTC 2018


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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