From: mark@taylor.uucp (Mark A. Davis) Subject: Re: Questions on Disk Throughput IDE vs SCSI in Linux Date: Mon, 28 Jun 1993 18:30:37 GMT
maniac@unlv.edu (Eric J. Schwertfeger) writes:
> There have been several seemingly contradictory messages
>lately concerning HD throughput. I'd like to find out a few
>facts before I make a decision on what disk system to buy for my
>computer.
[...]
> There are several other theoretical enhancements to IDE
>throughput, but there's not much use talking theoretical at the
>moment. Unless someone convinces me that it's worth an extra
>$200 dollars for me to get an AHA1542 or Ultrastore 34F, I plan
>on going with IDE, just to investigate those theoretical
>enhancements.
There is a lot more to the issue than just speed. I tend to think they are
about the same speed (but not if you compare SCSI/2 fast...).
You should consider that SCSI is a real and solid standard. You can get
SCSI QIC drives, 8mm drives, DAT drives, Hard Drives, CD-ROM drives, optical
drives, etc...... IDE is extremely limiting. In addition, since IDE is
STILL a throwback to clone stuff, you can only use 2 drives on it. With SCSI,
you can have up to 7 devices on each channel (and with more with additional
channels).
SCSI is really, still the only standard which comes close to a "universal"
standard for any kind of drive technology. It can also be used with things
as strange a printers, networking, and serial cluster units. You may not
need the capability now- but $ well spent now can save headaches later...
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