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From Koushik Das <koushik....@citrix.com>
Subject Re: Back end volume names in KVM
Date Thu, 10 Oct 2013 05:21:24 GMT

On 10-Oct-2013, at 9:27 AM, Marcus Sorensen <shadowsor@gmail.com> wrote:

> Does anyone have any reservations about changing the volume identifier in
> KVM's volume creation command to be the uuid of the volume? Currently for
> new volumes it generates a random uuid and passes that back to be stored in
> the database. From an admin perspective, the only way to link a volume on
> the back end (be it a qcow2 image or an LVM volume) to one as reported is
> to look in the DB and see what this 'secondary uuid' is and look for THAT
> as the filename/image name on the back end. It would simply remove a layer
> of translating uuid to another hidden uuid to get file/volume name.
> 

The 'uuid' field in volumes table was added later on. Since previously there was no uuid for
a volume it was done that way.
+1 for the change.

> It shouldn't disrupt or change current volumes, just new ones.
> 
> The only caveat I can think of so far is if we wanted multiple files/images
> on the back end to map to one volume, but I don't see that as a blocker
> since it would probably have lots of other implications to the tracking
> volume objects.


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