Re: Silent RAID-1 degradation on CentOS 5?

["Bill Bogstad" <user=6@nabble.blu.org>]

 On Wed, Aug 27, 2008 at 5:10 PM, Don Levey <[hidden email]> wrote: 
> John Abreau wrote: 
> 
>> What could have caused this to silently fail like this, and how 
>> can I restore RAID safely? 
>> 
>> We had a power outage a few weeks ago that lasted longer than 
>> the UPS's battery capacity; I suppose that could be the underlying 
>> cause of it degrading to non-RAID status. But why would it 
>> do that silently? 
>> 
> 
> I had a similar situation a few weeks back where my power was rudely 
> interrupted.  When the machine was brought back up, the second element 
> in each RAID1 array was offline.  Adding/resynching was quick, easy, and 
> it worked.  I don't know why it dropped, but yours doesn't seem to be an 
> isolated incident.