Re: SAS 5/IR Performance
Ah, that makes more sense to me. I could still see it saying "write through" in OpenManage, but the performance increased 5 to 7 times in my write tests. I did upgrade all of the firmware including the SAS 5, that made no noticable performance difference (but didn't hurt anything either).
We are using SAS drives on all servers purchased since this one experiment in SATA.