On 02/06/2012 12:33 AM, John R Pierce wrote: > On 02/05/12 3:24 PM, Ross Walker wrote: >> It might be easier to do the striping in software cause that's a zero over-head operation and it makes the hardware RAID easier to setup, maintain and can make rebuilds less painful depending on the controller. > > I just tried a bunch of combinations on a 3 x 11 raid60 configuration > plus 3 global hotspares, and decided that letting the controller (LSI > 9260-8i MegaSAS2) do it was easier all the way around. of course, with > other controllerrs, your mileage may vary. and yes, megacli64 is an > ugly tool to tame. > > with 3TB SAS drives, single drive failures rebuild in 12 hours, double > failures in 18 hours. (failures forced by disabling drives via megacli) > > > What about Software RAID 10 (far)? It gives 2 x read speed and 1 x write speed (speed of single HDD). -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant