OpenStack Compute (nova)

Multiple volume group in nova-volume

Asked by JuanFra Rodriguez Cardoso

Hi!

Could nova-volume work with multiple volume groups? I know it's necessary to create the 'nova-volumes' group but I'd like to create another volume-group.

Thanks.

Regards, Juan F.

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JuanFra Rodriguez Cardoso
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Vish Ishaya (vishvananda) said : 		#1

it currently only works with one volume group. You could create a new driver that could allow for multiple groups. Is there a reason why you want more than one?

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JuanFra Rodriguez Cardoso (juanfra-rc) said : 		#2

Ok. No problem.

I want to create a local redundandy system between two instances.

Thanks for you answer.

Regards, Juan F.

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Stano Visnovsky (stanislav-visnovsky) said : 		#3

One reasonable use case is to be able to use 2 different kinds of disks - SSD and HDD, having a single volume group over mix of disks makes no sense.