We did try the CacheCade Pro 2.0 software with a single SSD drive, and 6 - SAS 600GB 6Ggb 15K Raid 10. The SSD became a bottleneck for the drives. I think if we had more SSD's in a Raid 0 config it would have worked better. We are getting about 600MBps read so we are content with not turning on the SSD again.

Thanks
Shawn