I know, I'm bumping up my old thread
But both my Seagate 7200.12 1TB drives have failed (SMART fail actually) so they're off to RMA. Haven't decided if I'll keep the 7200.12s around for backup or sell them off.
However, my RAID10 is now purely Samsung F3 drives so the benchmarks are a bit different. However there's also data on the array now which probably skews results too.
Also the driver/firmware on the card are newer now too. Either way though, seems performance is up now, especially the writes.