I have Nimble NAS box. There are multiple volumes created on that and they are already attached to KVM virtual machines. I want to import these volumes in Cinder. I want to migrate those virtual machines to which they are connected, to openstack instances. I cannot recreate those volumes as they contain data. Please help.
I already have volumes on Nimble storage. These volumes are mounted on other VMs. I want to see the same volumes insider Cinder. I do not want to re-create this volumes. After I create the instances to replace those non-openstack VMs I want to attached the same volumes to the instances created.
Then i think the only solution would be to create a new cinder volume of same size within the nimble storage for each of your volumes. Then try to alter the association between cinder volume and nimble volume in the database so that the created cinder volume points to the already existing volume.
Cinder supports backup and restore of volumes:
http://docs.openstack.org/admin-guide...
But since your KVM VMs are not managed by Openstack and therefore are not true cinder volumes you can not use the cinder backup and restore function to migrate from a non cinder volume to a cinder volume.
Your best best is to create new VMs on Openstack, attach a cinder volume to those VMs then copy the data over the network.
What is your storage backend?? Got an similar problem and for an environment with cinder / ceph as backend this did the job for me. https://ask.openstack.org/en/question... Maybe something similar is possible for LVM based storage.
Greets Stefan
Cinder has a 'manage' command to enable exactly this use case. I'm not sure if it works with nimble at the moment, but worth investigating.
Asked: 2015-02-20 17:44:23 -0500
Seen: 1,902 times
Last updated: Mar 19 '15
