Can't specify custom backend-name for HP/3par driver

[Shanthakumar K]

Hi,

Please find my setup details below,

OS: Ubuntu12.04 LTS 64B

I have openstack grizzly single node setup with all the services up and running.

I'm running into a config issue with cinder-volume service, while I'm trying to create the volume using multibackend driver
>>>>> Getting "No valid host found" error

I have created the volume-type and associated the same with volume_backend_name (Custom name for both volumetype & volume_backend_name)

Since the code is hardcoded, the create request for 3par volume is not taking the custom name and its taking the volume_backend_name as "HP3PARFCDriver"

We found this after lot this scheduler log updatation.

once we change the volume_backend_name to HP3PARFCDriver the request is getting passed.

Its not mentioned in any docs as well and its similar to bug "1173037"

[John Griffith (john-griffith)]

We just fixed this in the LHN driver and noticed it's a problem in a number of the drivers. We should just go through and address all of them at this point and submit one fix for all of the remaining drivers that didn't implement:

backend_name = self.configuration.safe_get('volume_backend_name')
data['volume_backend_name'] = backend_name or self.__class__.__name__

[Walt Boring (walter-boring)]

I'll go through the drivers and make sure they all have lines to allow adjusting the volume_backend_name

[Shanthakumar K (shantha-kumar)]

Thanks for you feedback.

As of now we have tested the in LHN iSCSI & 3par FC.

Soon ll update for 3par iSCSI & netapp if you need.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/28208

[Shanthakumar K (shantha-kumar)]

Thanks for accepting the defect.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/28208
Committed: http://github.com/openstack/cinder/commit/54a2ee48a4dc31cbf116b1e9d5add37efe66bc20
Submitter: Jenkins
Branch: master

commit 54a2ee48a4dc31cbf116b1e9d5add37efe66bc20
Author: Walter A. Boring IV <email address hidden>
Date: Fri May 3 14:36:12 2013 -0700

    Fix ability to add custom volume_backend_name

    This patch fixes the ability to set the volume_backend_name
    for each driver. The original bug was filed against LeftHand
    and 3PAR, but several drivers exhibited a fixed backend name.

    Fixes: bug #1175222
           bug #1172286

    Change-Id: I4197f99bebd6ca8e4969795ae6edb537bc066c90

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/grizzly
Review: https://review.openstack.org/28440

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/28440
Committed: http://github.com/openstack/cinder/commit/995a3100fcaa7eb445b2838c4b4799a482c817cc
Submitter: Jenkins
Branch: stable/grizzly

commit 995a3100fcaa7eb445b2838c4b4799a482c817cc
Author: Walter A. Boring IV <email address hidden>
Date: Fri May 3 14:36:12 2013 -0700

    Fix ability to add custom volume_backend_name

    This patch fixes the ability to set the volume_backend_name
    for each driver. The original bug was filed against LeftHand
    and 3PAR, but several drivers exhibited a fixed backend name.

    Fixes: bug #1175222
           bug #1172286

    Change-Id: I4197f99bebd6ca8e4969795ae6edb537bc066c90
    (cherry picked from commit 54a2ee48a4dc31cbf116b1e9d5add37efe66bc20)