[CentOS] RAID 5 setup?

Ross Walker rswwalker at gmail.com
Sat Mar 27 01:06:15 UTC 2010


On Mar 26, 2010, at 10:25 AM, Benjamin Franz <jfranz at freerun.com> wrote:

> Ross Walker wrote:
>>
>> No, not yet, but I always recommend setting up your data arrays
>> manually so your intimately familiar with how they are constructed  
>> and
>> the mdadm command usage is fresh in your head.
>>
>> Did you know with Neil's raid10 implementation you can store 3 copies
>> of the data so ANY two drives can fail before you start playing
>> Russian roulette!
>>
>
> You can do that with RAID1+0, too. You can setup RAID1 with more  
> than 2
> drives. I have one system with an 8-way RAID1 for the OS.

Yes, but you can use a lot less drives to get the same IOPS with  
Neil's module (which technically isn't RAID10 at all but a whole new  
RAID level).

-Ross



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