Re: What to do when a parent RBD clone becomes corrupted

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On Mon, Jan 5, 2015 at 5:46 PM, Robert LeBlanc <robert@xxxxxxxxxxxxx> wrote:
> Now that the holidays are over, I'm going to bump this message to see if
> there are any good ideas on this.
>
> Thanks,
> Robert LeBlanc
>
> On Thu, Dec 18, 2014 at 2:21 PM, Robert LeBlanc <robert@xxxxxxxxxxxxx>
> wrote:
>>
>> Before we base thousands of VM image clones off of one or more snapshots,
>> I want to test what happens when the snapshot becomes corrupted. I don't
>> believe the snapshot will become corrupted through client access to the
>> snapshot, but some weird issue with PGs being lost or forced to be lost,
>> solar flares or alien invasions.
>>
>> My initial thought was to export a snapshot image and import it over the
>> top of the existing snapshot so that children would be preserved. No such
>> luck. I was hoping there would be a "i-really-really-want-to-do-this" option
>> that would let me restore the snapshot.
>>
>> Am I going about this the wrong way? I can see having to restore a number
>> of VM because of corrupted clone, but I'd hate to lose all the clones
>> because of corruption in the snapshot. I would be happy if the restored
>> snapshot would be flattened if it was a clone of another image previously.
>>
>> Thanks,
>> Robert LeBlanc
>
>
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