Re: Intel SSDs that may not suck

On 2011-03-29 16:16, Jeff wrote:
> halt for 0.5-2 seconds, then resume. The fix we're going to do is
> replace each drive in order with the rebuild occuring between each.
> Then we do a security erase to reset the drive back to completely
> empty (including the "spare" blocks kept around for writes).

Are you replacing the drives with new once, or just secure-erase and back in?
What kind of numbers are you drawing out of smartmontools in usage figures?
(Also seeing some write-stalls here, on 24 Raid50 volumes of x25m's, and
have been planning to cycle drives for quite some time, without actually
getting to it.

> Now that all sounds awful and horrible until you get to overall
> performance, especially with reads - you are looking at 20k random
> reads per second with a few disks. Adding in writes does kick it
> down a noch, but you're still looking at 10k+ iops. That is the
> current trade off.

Thats also my experience.
--
Jesper