Ok, enlighten me...an outside track holds the same amount of data as an inside track
does, right? The bits are just physically crammed close together on the inside
tracks. That being the case, the actual read/write rate would be the same on outside
tracks as on inside tracks. So all you really have to deal with is arm seeks that
keep running in and out of the disk. Or, have things changed since started in this
business, so many years ago?
>>> [EMAIL PROTECTED] 04/24/01 10:51AM >>>
----- Original Message -----
> Ever since ZBR, the need to use the outside of the disk ( to
> reduce seeks ) is significantly reduced.
>
PMFJI.
The reason for using the outside of the disk is the increased
linear velocity there re the heads. Larger circle, same angular
velocity, larger linear velocity. Which means you get faster
read data transfer rate. Nothing at all to do with reducing
seeks. What you end up with is less rotational latency and
significantly faster (up to 30% best case) data transfer speed
from the silver to the disk cache. From there on to the disk
controller and the buffers, it's all the same.
This was explained to me by a guy that works on firmware
for Seagate. He sent me the best "disk speed measure" program
I've ever seen!
Cheers
Nuno Souto
[EMAIL PROTECTED]
http://www.users.bigpond.net.au/the_Den
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