On 05/08/2008 11:29 AM, Luke Scharf wrote:
> Dave wrote:
>> On 05/08/2008 08:11 AM, Ross wrote:
>>  
>>> It may be an obvious point, but are you aware that snapshots need to 
>>> be stopped any time a disk fails?  It's something to consider if 
>>> you're planning frequent snapshots.
>>>     
>>
>> I've never heard this before. Why would snapshots need to be stopped 
>> for a disk failure?
>>   
> 
> Because taking a snapshot makes the scrub start over.  I hadn't thought 
> about this extending to a resilver, but I guess it would!
> 

Ah, yes, for scrubs/resilvers. My brain didn't seem to understand the 
actual intent of Ross' statement, which was to say that repairing a 
mirror/raidz after replacing a bad disk requires halting new snapshots. 
On the other hand, a disk can fail and you can take snapshots all day 
long on a degraded pool.

Glad to hear there's code under review to fix this.

--
Dave
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