Originally posted by: MplsBob
Surprising, but true, a single Raptor beats out a RAID of Raptors. If you have money to burn go for the $320 Western Digital Raptor X WD1500AHFD 150GB 10,000 RPM 16MB Cache Serial ATA150 Hard Drive-OEM. It beats the daylights out of all other IDE hard drives. It also has a crystal-clear lens on the drive to let you see into the inner workings and witness the drive in action, which adds nothing at all to its performance.
Next down the list is the Western Digital Raptor WD1500ADFDRTL 150GB 10,000 RPM Serial ATA150 Hard Drive- Retail. It costs $290 and is the same as the above, but without the window.
Third on the list is the Western Digital Raptor WD1500ADFD 150GB 10,000 RPM Serial ATA150 Hard Drive - OEM. It normally costs $249 (NewEgg has a $50 rebate bringing that down to $199) and has the performance of the above, but comes with no extras. You just get the drive.
Fourth on the list is the Western Digital Raptor WD740ADFD 74GB 10,000 RPM 16MB Cache Serial ATA150 Hard Drive - OEM. It normally costs about $170. It offers performance that is a clear step down from the 150GB unit, but still whumps any non-Raptor drive around. I had one of these "lying around". I popped it into my tower as c: drive and watched my backup times get cut in half.
Originally posted by: drewintheav
Actually, I think that the Raptor 360ADFD 36 GB, and 740ADFD 74 GB are a little faster than the 150 GB Raptor. So... in raid 0 mode they should also be faster at least with large files...
Originally posted by: drewintheav
Actually, I think that the Raptor 360ADFD 36 GB, and 740ADFD 74 GB are a little faster than the 150 GB Raptor. So... in raid 0 mode they should also be faster at least with large files...
Originally posted by: MplsBob
Up above, lamere asked for some links to back up what I said above. Actually both StorageReview.com and AnandTech have in the past written articles about the fact that RAID performance is not what it is cracked up to be and that it really offers no particular advantage, particularly in view of the cost involved and the increased failure rate(you just doubled it by adding a second disk). In a quick look I have been unable to locate either the original of these two articles.
I did find an article on AnandTech that concludes:
"If you haven't gotten the hint by now, we'll spell it out for you: there is no place, and no need for a RAID-0 array on a desktop computer. The real world performance increases are negligible at best and the reduction in reliability, thanks to a halving of the mean time between failure, makes RAID-0 far from worth it on the desktop."
If you want to read the whole article:
Western Digital's Raptors in RAID-0: Are two drives better than one?
(I will caution you that reading about RAID is generally a pain because of the subtleties and the complexities involved.)
Since this one issue is repeated at least once per day it would be nice if AnandTech made it the permanent first article in the forum. For a while they did something like that on issues that were repeated endlessly. The problem they had was the huge number of twits who couldn't bother to read and still asked the same questions.
Originally posted by: DanW85
Originally posted by: drewintheav
Actually, I think that the Raptor 360ADFD 36 GB, and 740ADFD 74 GB are a little faster than the 150 GB Raptor. So... in raid 0 mode they should also be faster at least with large files...
not from what I've read on Storage Reviw. Apparently it's due to the increased density (which makes sense, the disc has to spin less to go further through the data)