Hi,

we have a problem with some VMs which cannot be started anymore due to an illegal disk status of a snapshot.

What happend (most likely)? we tried to snapshot those vms some days ago but the storage domain didn't have enough free space left. Yesterday we shut those vms down - and from then on they didn't start anymore.

What have I tried so far?

1. Via the web interface I tried to remove the snapshot - didn't work.
2. Searched the internet. Found (among other stuff) this: https://bugzilla.redhat.com/show_bug.cgi?id=1649129
   
3. via vdsm-tool dump-volume-chains I managed to list those 5 snapshots (see below).

The output for one machine was:

   image:    2d707743-4a9e-40bb-b223-83e3be672dfe

             - 9ae6ea73-94b4-4588-9a6b-ea7a58ef93c9
               status: OK, voltype: INTERNAL, format: RAW, legality: LEGAL, type: PREALLOCATED, capacity: 32212254720, truesize: 32212254720

             - f7d2c014-e8f5-4413-bfc5-4aa1426cb1e2
               status: ILLEGAL, voltype: LEAF, format: COW, legality: ILLEGAL, type: SPARSE, capacity: 32212254720, truesize: 29073408

So my idea was to follow the said bugzilla thread and update the volume - but I didn't manage to find input for the job_id and generation.

So my question is: Does anyone have an idea on how to (force) remove a given snapshot via vsdm-{tool|client}?

Thanks in advance!
Daniel

-- 
Daniel Menzel
Geschäftsführer

Menzel IT GmbH
Charlottenburger Str. 33a
13086 Berlin

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daniel.menzel@menzel-it.net
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