[Openstack] Migrating cinder volumes to a new cluster

Jimmy Colestock jcolestock at gmail.com
Fri Feb 3 15:53:56 UTC 2017


Hello All, 

I want to migrate about 100 instances to a new cluster that are all backed by cinder volumes on an HP 3Par.   
My plan is: 

1. Create the new cluster.
2. Connect cinder to the existing 3Par cpg 
3. Manually update the cinder volume info in new cluster.
4. Terminate the instance in the old cluster
5. Launch an instance in the new cluster, attaching to the previously used volume. 

Anyone tried anything like this before?  My biggest concern is attaching to the same CPG and to make sure cinder doesn’t re-iniialize the space or otherwise delete any of the existing volumes. 

Thanks in advance for any thoughts.. 

JC


Jim Colestock
jcolestock at gmail.com <mailto:jcolestock at gmail.com>
https://www.linkedin.com/in/jcolestock/ <https://www.linkedin.com/in/jcolestock/>
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