Ya missed an important point on the first page.

"1) There is currently no way to pass the TRIM instruction to a drive that is a member of a RAID array."

The drives may support TRIM but no RAID controller on the market will pass the instruction to the drive.

And OCZ's garbage collection is entirely independent from the drive controller, and doesn't need instructions passed to it like TRIM. It will work regardless of your configuration.

And on that note, I have two 60GB OCZ Agility SSDs in RAID 0 and am very happy with them. My sequential read performance sits at over 400MB/s and sequential writes are over 200MB/s. Although my random read and write performance isn't quite as nice as the Intels RAIDed here, I didn't pay any more for my drives ($140 ea. Canadian on sale after rebate) and have an extra 40GBs of storage over this Intel RAID. The extra capacity is what sold me on the OCZ drives over Intel, but I'd be willing to bet that the Intel X25-V drives would offer a better overall RAID experience than a set of Agilities, even with their lack of garbage collection as Anand noted.

Is the lack of TRIM a limitation of RAID controllers or a limitation in the drivers? I.e. could an update to the Intel storage drivers remedy the problem on Intel chipsets?

There is no lack of TRIM for RAIDs anymore thanks to Intel.

http://guru3d.com/news/intel-brings-trim-to-ssds-i...

Nope, it only supports single drives running next to a RAID. RAID still lacks TRIM support.

http://techreport.com/discussions.x/18653

You don't have that option (and anyway, it will slow your RAID to the speed of the slowest writing disk, even if reads will always take place from the SSD drives).

You're better off creating a SSD RAID-0 as your boot/app/game drive and then back up that partition every night (or twice per day?) to a HDD RAID-1/5/6. It's not as protected as a real-time RAID-1/5/6, but it's the best and cheapest of both worlds. Also, if you've ever tried to restore a RAID-1/5/6, it takes much, MUCH longer than restoring a partition from a backup. I use Windows Home Server to do this for my ~60GB SSD partition and it is bloody quick (the one time I had to do it).

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