[openstack-dev] what code in cinder volume driver supports volume migration between two backends of same type but having different volume types?

Nikesh Kumar Mahalka nikeshmahalka at vedams.com
Mon Jan 19 19:01:46 UTC 2015

do cinder retype (v2) works for lvm?
How to use cinder retype?

I tried for volume migration from one volume-type LVM backend to
another volume-type LVM backend.But its failed.
How can i acheive this?

Similarly i am writing a cinder volume driver for my array and want to
migrate volume from one volume type to another volume type for my
array backends.
so want to know how can i achieve this in cinder driver?


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