On Fri, Sep 24, 2010 at 7:50 PM, Digimer <linux at 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 at alteeve.com > AN!Whitepapers: http://alteeve.com > Node Assassin: http://nodeassassin.org > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- Jacob Bresciani Linux Systems Administrator Advanced Ecommerce Research Systems / Terapeak Cell: 250 418-5412 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20100924/be90ec84/attachment-0005.html>