On Fri, Sep 24, 2010 at 7:50 PM, Digimer linux@alteeve.com wrote:
On 10-09-24 10:27 PM, Tom Bishop wrote:
I have been reading lots of stuff but trying to find out if a raid10 2drive setup is any better/worse than a normal raid 1 setup....I have to 1Tb drives for my data and a seperate system drive, I am only interested in doing raid on my data...
So i setup my initial test like this....
mdadm -v --create /dev/md0 --chunk 1024 --level=raid10 --raid-devices=2 /dev/sdb1 /dev/sdc1
I have also read about near and far but was going to play with this and was wondering if anyone had any insights for 2 drives setup...Thanks...
Raid 10 requires 4 drives. First you would make two RAID 0 arrays, then create a third array that is RAID 1 using the two RAID 0 arrays for it's devices.
This would be a RAID 0+1, stripped set's mirror together. RAID 1+0 is mirrored disk sets stripped together.
http://en.wikipedia.org/wiki/RAID#Nested_.28hybrid.29_RAID
With only two drives, your option is RAID 1 (mirroring - proper
redundancy) or RAID 0 (striping only - lose one drive and you lose *all* data).
-- Digimer E-Mail: linux@alteeve.com AN!Whitepapers: http://alteeve.com Node Assassin: http://nodeassassin.org _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos