I was surprised when I found out my fancy RAID5 card was using DMA for all of its disk accesses instead of having its own memory. Just the dumbest design. I had

I was surprised when I found out my fancy RAID5 card was using DMA for all of its disk accesses instead of having its own memory. Just the dumbest design. I had a power issue fry the last memory stick in my machine so it would come up clean and then under load report disk corruption. The disk was fine. Memory was broken. I rebuilt that fucking array three times before I ran a memory analyzer on the box.