SCSI vs. IDE In The Real World

An anonymous reader writes "Gerard Beekmans has a really good comparison of the speeds of IDE and SCSI drives up over on devchannel.org. Should help put an end to the myth of IDE erasing SCSI's speed advantage." Note that Beekmans' test handicaps the SCSI disk a bit, with interesting results. (DevChannel, like Slashdot, is part of OSDN.)

Comments

Meaningless..

[grub]

a really good comparison of the speeds of IDE and SCSI drives

Oh please. With all due respect to the submitter and Mr. Beekmans, this "comparison" ignores all sorts of other factors: write caching, command overlap, rotational speeds, et al ad nauseum. Yes, some of these are mentioned but a comparison such as this should have hard numbers in a table not opinions. Not that I'm suprised or upset that SCSI trounces IDE, but his comparison is virtually meaningless.

There are many benchmarking suites out there, I'd suggest these be used for the next test to provide some meaningful results.

Re:Does it matter?

[hayesjaj]

Yes, it does matter. The applications that he tested did not include cpu usage, which are assumed to be neglegable. Try doing an IDE Raid setup while your cpu usage is already high (e.g., a cpu and disk intensive game or running many applications in virtual memory). The simple fact that the scsi controller handles the io operations will cause your performance to increase even more than the article suggests. Now, do you need to spend 500+ dollars to store mp3s and your pron? Probably not.