Hard Disk IDs in Linux

Lonnie Olson lists at kittypee.com
Tue Mar 12 13:06:11 MDT 2013


Important thing to consider is Murphy's law.  The minimum number of
disk failures to destroy your whole array.  In RAID6, it's 3 disks.
In RAID10, it's 2 disks.  Obviously this would have to be a matched
pair, but s#!* happens.


On Tue, Mar 12, 2013 at 12:17 PM, Nicholas Leippe <nick at leippe.com> wrote:
> I have to second the raid10 proponents. Excellent redundancy,
> performance, and minimizes rebuild time--meaning you're back up to
> full redundancy that much quicker after a failure. It also maximizes
> the failure combinations you can withstand.
>
> If you use the md raid10 driver, you can actually achieve near raid0
> read performance (depending on layout choice and access pattern of
> course). You can also use the md raid0 on top of raid1 components.
>
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