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From Gaurav Aradhye <gaurav.arad...@clogeny.com>
Subject Re: [QUESTION] How is snapshot size counted in secondary storage?
Date Tue, 09 Dec 2014 05:39:55 GMT
Thanks Mike!

However, I am observing this in case of first snapshot also. Let me try on
various hypervisors to see the behavior.

Regards,
Gaurav

On Tue, Dec 9, 2014 at 11:04 AM, Mike Tutkowski <
mike.tutkowski@solidfire.com> wrote:

> I'm not exactly sure how this number is calculated, but - if you are using
> XenServer - remember that after the first snapshot for a volume, each
> subsequent snapshot is only the blocks that have changed since the prior
> snapshot (this might even be true for ESX these days with CloudStack).
>
> That being the case, unless you change all 8 GB of blocks each time before
> doing a snapshot, you should expect your snapshots to be < 8 GB
> (potentially very small, if you didn't change much since the last
> snapshot).
>
> On Mon, Dec 8, 2014 at 10:15 PM, Gaurav Aradhye <
> gaurav.aradhye@clogeny.com>
> wrote:
>
> > Hello,
> >
> > When I create a snapshot, from say, template registered through an
> account,
> > then
> >
> > 1) How can I know the snapshot size on secondary storage? (API
> > listSnapshots does not specify the snapshot size)
> >
> > 2) How is snapshot size counted in secondary storage used by the account?
> > Currently I can see secondary storage count increasing by the (number of
> > snapshots) and not the snapshot size.
> >
> > E.g. I have template sized 8 GB. I create a snapshot from it. Now if I
> list
> > the secondary storage used by the account, then it lists as "9" (GB). If
> I
> > create another snapshot, then it lists it as 10. It is not possible for
> my
> > snapshot size to be 1 (GB) because it's created from root volume having
> > size 8 GB.
> >
> > Can I say it's a bug? Secondary storage count being listed as (Storage
> > other than snapshot + number of snapshots) GB.
> >
> > Regards,
> > Gaurav
> >
>
>
>
> --
> *Mike Tutkowski*
> *Senior CloudStack Developer, SolidFire Inc.*
> e: mike.tutkowski@solidfire.com
> o: 303.746.7302
> Advancing the way the world uses the cloud
> <http://solidfire.com/solution/overview/?video=play>*™*
>

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