As of right now there is no TRIM support for SSD's in a RAID array. So every now and then you will have to take the array down, perform a low level format, then reinstall. Also benchmarks show that the latest Revo drive only shines when the que depth goes over 1, rare for like 99% of users out there. With Sata3 and single SSD's able to hit 500 MB/s, IMO a single SSD will be more reliable for the long run.