Re: Questions about RAID 6

[Bob McGowan <bob_mcgowan@symantec.com>]

On 04/26/2010 04:33 PM, Mike Bird wrote:
> On Mon April 26 2010 14:44:32 Boyd Stephen Smith Jr. wrote:
>> the chance of a double failure in a 5 (or less) drive array is minuscule.
> 
> A flaky controller knocking one drive out of an array and then
> breaking another before you're rebuilt can really ruin your day.
> 

I've been out of the office and so come to this discussion a bit late -
my apologies if this has been mentioned ...

Greater redundancy can be had by putting disks on several controllers
rather than all on one.

If the rebuild fails due to a controller problem, it shouldn't affect
the disks on the other controllers.

> Rebuild is generally the period of most intense activity so
> figure on failures being much more likely during a rebuild.
> 
> --Mike Bird
> 
> 

-- 
Bob McGowan