[CentOS] RAID-10 vs Nested (RAID-0 on 2x RAID-1s)

Luke S. Crawford lsc at prgmr.com
Thu Mar 29 23:19:58 EDT 2012


On Thu, Mar 29, 2012 at 04:49:26PM -0500, Tim Nelson wrote:
> Am I overthinking this? Does the kernel handle the mirror/stripe configuration under the hood, simply presenting me with a magical RAID10 array? Or, is this something different and I really should be performing the RAID creation manually as noted in option #1?

I used to do something very similar to option 1, save that I used LVM to 
do the striping.  I now use the md raid10 array.  Rebuilds are dramatically
faster under the 'just let md handle the raid10' option.   


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