I think Brent Ozar tested the HP version of this on tempdb a few weeks back. HP rebrands these, but i think they only sell the blade server version under the HP brand. and they are very expensive.

few years ago i experimented with RAID10 on a new BI server we built. i created a few RAID10 volumes. performance was good, but not so much better. and i constantly ran out of space and people who controlled the budget for this server constantly complained about buying new drives. I finally blew it away in favor of a few RAID5 and RAID1 volumes. If i ever do it again i would opt for multiple RAID1 volumes and split the data/index and log files.

i would like to see a test comparing SSD's with a MSA 70 full of RAID1 volumes instead of RAID10.

One nice thing about SSD is that they use a lot less power. i compared a consumer SSD drive to a consumer HD and it used something like 1/10 the power. Intel just started producing flash memory on their new 25nm process and the first products should come out in the 4th quarter. later this year and early next year we should see a huge drop in SSD prices. Toshiba is also experimenting with sub 25nm manufacturing, but their largest customer is Apple. Over the next few years I think there will be a huge ROI case to be made in favor of SSD on the electricity savings alone.