Re: distributed storage/home-made cloud recommendations

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]



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
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos


[Index of Archives]     [CentOS]     [CentOS Announce]     [CentOS Development]     [CentOS ARM Devel]     [CentOS Docs]     [CentOS Virtualization]     [Carrier Grade Linux]     [Linux Media]     [Asterisk]     [DCCP]     [Netdev]     [Xorg]     [Linux USB]
  Powered by Linux