> Because the IDE price compared to SCSI I use on some of my server IDE HD.
> Very BAD !!!
> They are not reliable, and when they die all the work around cover more then
> then difference between them and SCSI
As Gavrie noted, there is no difference between the technologies which
should cause any difference in quality. The mechanics is similar.
Once I was puzzled about the difference in pricing, asked many people,
and got the following answer: It's a matter of marketing. If all the
disks will be expensive, no home users will buy them. If all the disks
will be cheap, you will lose the big money (corporations and other
rich customers who are willing to pay thousands for one disk). The way
to eat the cake and still have it, is by selling cheap disks AND
expensive disks. But how can you force the rich customers to buy the
expensive disks? By using a low quality manufacturing for the cheap
disks. To help people know what disk should each buy, all the IDE
disks are manufactured in low quality, and all the SCSI disks in high
quality. And if you don't believe, check and find that ALL the SCSI
disks have a warranty of 5 (!) years. There is NO IDE disk with such
a warranty (maximum 3 years).
> Western Digital are the worse.
It depends on the exact series. The disk which is discussed here
(Expert 18GB), is manufactured by IBM, and re-packaged by WD. This
disk is exactly the same as Janus 18GB of IBM, and awarded many
editor's choice in various comparisons. On the other hand, other
series of WD had a very bad history.
Boaz wrote:
> Say, about that: I also noticed no noticable change (at least under
> Windoze). Is it supposed to be like that ? if the change is so minor -
> where did the double clockspeed(right term?) went ?
The average performance of all the existing disks are lower than 33.
The reason that you still have a small difference, is that when a big
block of data which is cached in the internal memory of the disk is
queried, there is a chance to exceed the 33.
When there will be many 10,000 RPM IDE disks (soon), it will be easier
to notice the difference.
--
Eli Marmor
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