Open Stack

Hi Xing,


Thanks for replay,



I tried because the use case was to support both in single pool.

I was thinking in same as to read the volume type in scheduler,  however since it is a new requirement that affects everyone it might not be good to change now.

I shall try with the other approach pools for thin /thick and update you.


Thanks
Dilip








-----Original Message-----
From: yang, xing [mailto:xing.yang at emc.com] 
Sent: Friday, February 12, 2016 12:42 PM
To: Dilip Sunkum Manjunath
Cc: openstack at lists.openstack.org; itzdilip at gmail.com
Subject: Re: [OpenStack] [CINDER] how to get updated pool info when multi users create volumes on pool configured?

Hi Dilip,

I see.  If thin_provisioning is true and max_over_subscription_ratio is valid, the scheduler will treat it as thin provisioning.  We do not prevent driver from reporting both thin and thick support to be true.  However, I think we need to make a change.

I suggest that you have one pool for thin and the other one for thick but don't report both thin and thick support from the same pool.  That will avoid this problem.

Another possible alternative is to require thin/thick provisioning to be in extra specs and use that info in the scheduler, however that will be a new requirement that affects everyone.  So I am not in favor of that approach.

Can you use one pool for thin and another for thick in your testing?

Thanks,
Xing



> On Feb 12, 2016, at 12:05 AM, Dilip Sunkum Manjunath <Dilip.SunkumManjunath at toshiba-tsip.com> wrote:
> 
> max_over_subscription_ratio
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