[libvirt] can't start domain with a corrupted disk attatched

[Daniel P. Berrange]

On Thu, Nov 03, 2011 at 05:33:56PM +0800, lvroyce wrote:
> Hi all,
> 
>    I came across below issue when testing:
> 
>    1.make a volume and attach it to  a domain A
>    2.unplug the vg from the host in order to emulating a volume failure
>    3.start domain A(failed)
> 
>     In step 3 can't start domainA . because can't find disk listed
> in xml when create the Domain.
> 
>     I'm not sure if it is reasonable. In common sense, we can still
> start our system even if we have a corrupt data disk .And also ,if
> in data center we carelessly attatch a corrupt volumn to all the
> guest, it will result in all guests fail to boot .
> 
>     I suggest to  automatically detach a disk if it can't be found
> and just give out a warning.Please let me know your opinion about if
> it is a bug or a feature.Thanks.

You are not simulating a corrupt data disk in your example, you are
simulating a completely missing disk. This is simply administrative
error and thus is it perfectly reasonable for the guest to not
start when its disk is missing.


Daniel
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