[CentOS] Re: question about software Raid 1

[Alexander Georgiev]

2008/9/30 Les Mikesell <lesmikesell at gmail.com>:
>
>> BTW, there is - even with current kernels - no speed gain in using RAID1 -
>> see http://kernelnewbies.org/KernelProjects/Raid1ReadBalancing .
>
> I don't think I believe that - you can see the reads alternating drives by
> watching the lights.

Indeed, there is a patch linux-2.6-dm-mirroring.patch in Centos5.2
kernel sources which implements a proper body of choose-mirror()
function.