[Users] Removal of hard disk doesn´t trigger removal of underlying snapshots

[Igor Lvovsky]

----- Original Message -----
> From: "Karli Sjöberg" <Karli.Sjoberg at slu.se>
> To: "Igor Lvovsky" <ilvovsky at redhat.com>
> Cc: "users" <users at ovirt.org>
> Sent: Tuesday, October 2, 2012 9:49:53 AM
> Subject: Re: [Users] Removal of hard disk doesn´t trigger removal of underlying snapshots
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> 1 okt 2012 kl. 19.06 skrev Igor Lvovsky:
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> ----- Original Message -----
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> From: "Karli Sjöberg" < Karli.Sjoberg at slu.se >
> 
> 
> To: "< users at ovirt.org >" < users at ovirt.org >
> 
> 
> Sent: Monday, October 1, 2012 9:32:26 AM
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> 
> Subject: [Users] Removal of hard disk doesn´t trigger removal of
> underlying snapshots
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> Hi,
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> and if you later try to remove the snapshot, after you have removed
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> the hard disk, the response given is "General command validation
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> failure". Bug?
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> In general when you remove the VM's disk it should remove all disk's
> snapshots as well.
> Could you please explain what you exactly did and how?
> In additional, please share with us vdsm log from your host (SPM) and
> engine's log
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> 
> Yeaow, that was yesterday so those logs are long archived and would
> take a while to search through and find something that I´m not
> really sure what I should be looking for.

Try to look logs for proper time. It will be a bit difficult to help you without 
understand what exactly happened there.

> But I can tell you what I
> did:
> 
> 
> 1. Created new Desktop VM, with thin hard drive
> 2. Created a snapshot after mucking around a bit
> 3. Removed hard drive (needed to start over fresh)
> 4. Snapshot was still present so that´s when I tried to delete it,
> and was stopped by said error message.
> 
> 
> I understand that the sanity-checking fails, since the hard drive is
> no longer present, hence the validation failure. But maybe it could
> be neat if it could reply something like "You know, I can´t find the
> hard drive that goes with the snapshot you want to delete. Could
> that be because you´ve already deleted it?" and check "Yes, I have."
> and then "OK". How does that sound?
> 
> 

Not such easy. You never know whether the hard drive was deleted or never exists

> /Karli
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> Regards,
> Igor
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> Med Vänliga Hälsningar
> 
> 
> -------------------------------------------------------------------------------
> 
> 
> Karli Sjöberg
> 
> 
> Swedish University of Agricultural Sciences
> 
> 
> Box 7079 (Visiting Address Kronåsvägen 8)
> 
> 
> S-750 07 Uppsala, Sweden
> 
> 
> Phone: +46-(0)18-67 15 66
> 
> 
> karli.sjoberg at slu.se
> 
> 
> 
> 
> 
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> Med Vänliga Hälsningar
> -------------------------------------------------------------------------------
> Karli Sjöberg
> Swedish University of Agricultural Sciences
> Box 7079 (Visiting Address Kronåsvägen 8)
> S-750 07 Uppsala, Sweden
> Phone: +46-(0)18-67 15 66
> karli.sjoberg at slu.se
>