We (bu.mp) use a lot of SSDs at our datacenter.. we've probably used ~100 64GB x-25e, and recently we have added 20+ Micro P300 disks.
The first thing we used to do is try to convince the hardware raid controller not to do anything clever, like readahead etc, b/c seek times are practically meaningless. Despite our efforts at disabling every optimization we could control that was tailored for rotational platters, we still found that software raid (linux md) outperformed a classically great hardware controller--perhaps by virtue of being "stupider".
So that is our go-to configuration now: Micron P300 SLC, 200GB drives, with md raid.
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We (bu.mp) use a lot of SSDs at our datacenter.. we've probably used ~100 64GB x-25e, and recently we have added 20+ Micro P300 disks.
The first thing we used to do is try to convince the hardware raid controller not to do anything clever, like readahead etc, b/c seek times are practically meaningless. Despite our efforts at disabling every optimization we could control that was tailored for rotational platters, we still found that software raid (linux md) outperformed a classically great hardware controller--perhaps by virtue of being "stupider".
So that is our go-to configuration now: Micron P300 SLC, 200GB drives, with md raid.