On 30-07-2013 01:16, Rick James wrote:
> Elevator... If the RAID _controller_ does the Elevator stuff, any OS
> optimizations are wasted. And there have been benchmarks backing that
> up. (Sorry, don't have any links handy.)
> RAID 5/10 ... The testing I have done shows very little difference.
...right up to the day one of the disks fail, and you thought you could
just plug in a new spindle and let the system take care of the rest...