I've been running an ATA133 RAID 0 setup with (2) 40GB Maxtors through a
Promise RAID controller on my motherboard for 2 years now and it was
noticably faster. Now, since the advent of 8MB cache drives, it doesn't
seem that much faster these days, but if I were to upgrade to 2 drives
with the larger cache, I'm sure it would get a kick in the pants. It
wasn't that difficult to setup and I haven't had a bit of trouble out of
it. My brother is going to setup his new P4P800 Deluxe with SATA RAID with
2 drives with 8MB cache and I'll let you know how fast they are when we
test them in Sandra. My best Sandra benchmark for my RAID was almost
39,000. I expect my brother's RAID to benchmark in the 50,000's. I know a
single drive with 8MB cache is close to my score, but it won't approach
the score I fully expect him to acheive. Now, I know people claim Sandra
isn't the best benchmark for drive speed, but it's just a yard stick.
After doing a complete defrag of my RAID with Diskeeper, I ran Sandra's File
System Benchmark and I hit an all-time high score @ 40901 kB/s. My drives
are Maxtor ATA133 40GB drives with 2MB cache (2 of them). For comparison,
the software lists that a SATA RAID setup with (2) 120GB Maxtor drives with
8MB cache have a score of 54344 kB/s, an ATA100 RAID setup with 2MB cache
40GB DeskStar drives with a score of 36300 kB/s, a single ATA100 8MB cache
Western Digital 120GB drive score of 31400 kB/s, and finally an ATA100 80GB
IBM DeskStar drive with 2MB cache with a score of 29200 kB/s.
Now, everytime you run the benchmark, you get different results. Also, I
have a pretty loaded down system. I don't know how Sandra works, but I'm
willing to bet that if I reboot into Safe Mode and run the software, it'll
produce still better results.
Point is, RAID is very much worth the hassle, to me. As you can see, using a
similar drive alone with the 2MB cache produced less than 3/4's the speed
my RAID produced. I didn't see a listing for a single SATA drive with 8MB
cache, but I'd assume it's pretty much close to the ATA100 drive with the
8MB cache - maybe ever so slightly faster.
For the record, the software lists (4) Raptor drives in a SATA RAID setup @
a mind boggling 99,800 kB/s! A similar setup with only 2 drives produced
61488 kB/s.