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From Mike Tutkowski <mike.tutkow...@solidfire.com>
Subject Re: Storage Allocator Question
Date Wed, 10 Jul 2013 20:43:13 GMT
OK, thanks!


On Wed, Jul 10, 2013 at 2:40 PM, Prachi Damle <Prachi.Damle@citrix.com>wrote:

> Currently for storage allocators, only random or firstfit or
> user-dispersing strategies are present. This is governed by the
> 'vm.allocation.algorithm' global config.
> So for you case with storage tags, if you choose random, either of the
> pools can get chosen. For firstfit, you will mostly see one pool getting
> filled up first and then the other.
>
> There is no round-robin implementation in place. 'User-dispersing' may
> provide it to some effect if you are using a single account, since it
> always chooses a pool having less number of volumes for a given account.
>
> -Prachi
>
> -----Original Message-----
> From: Mike Tutkowski [mailto:mike.tutkowski@solidfire.com]
> Sent: Wednesday, July 10, 2013 1:34 PM
> To: dev@cloudstack.apache.org
> Subject: Storage Allocator Question
>
> Hi,
>
> I have a question about how current storage allocators work.
>
> Let's say I have two primary storages with the same storage tag.
>
> If I execute compute and disk offerings that reference that storage tag
> only, will one primary storage be (essentially) filled up before the other
> is utilized or do we have an allocator that performs round-robin placement?
>
> Thanks!
>
> --
> *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>
> *(tm)*
>



-- 
*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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