On 15-Dec-99 Eli Marmor wrote:
> As Gavrie noted, there is no difference between the technologies which
> should cause any difference in quality. The mechanics is similar.
As far as performance is considered, it's not RPM that usually matters (inspite
of a big hype), but the amount of cache on disk. Until recently (1-2 years), the
maximum cache on IDE disks was 128KB, while about each SCSI disk had 0.5MB.
> 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.
Well, it's an chicken and egg problem: to manufacture something with a higher
quality, one does need to invest more, even if the underlying technology is the
same.
> And if you don't believe, check and find that ALL the SCSI
> disks have a warranty of 5 (!) years.
Alas, not all. I also used to think so, and it struck me already twice. I do
suspect, though, that at least in one of the two cases it was just a plain lie
of the Israeli reseller (Mediatek) - when it came to replacement; but does it
help? :^). Notice that nowadays many HD resellers stamp on disks the _start_ of
the warranty period, not the _end_, and, after 2-3 years have lasted, it's quite
difficult to prove that it was promised to have a 5 year warranty.
Regards,
Evgeny
____________________________________________________________
/ Evgeny Stambulchik <[EMAIL PROTECTED]> \
/ Plasma Laboratory, Weizmann Institute of Science, Israel \ \
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