On Jan 16, 2015 9:03 PM, "mad Engineer" <[email protected]> wrote: > > Hello All, > i am working on integrating VNX with cinder,i have plan > to add another NFS storage in the future,without removing VNX. > > Can i add another backend while first backend is running without > causing problem to running volumes. > I heard that multiple backend is supported, > > thanks for any help > > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : [email protected] > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
So as long as you used the "enabled backend" format in your existing config you "should" be able to just add another backend without impacting your existing setup (I've never tried this with NFS/VNX myself though). If you're not using the enabled backends directive you can deploy a new cinder - volume node and just add your new driver that way. Otherwise you can move to multibackend but you will need to update the hosts column on your existing volumes.
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