"James" <anonymous> wrote in message
news

eednYYs36KQvj3eRVn-(E-Mail Removed)...
>I just upgraded my ATA100 (WD 80GB) hard drive to a SATA II (Samsung
>160GB). I have heard people say that Windows XP "boots real fast" after
>they upgraded to the SATA II drives. But I didn't notice any significant
>difference. After my machine is booted, my applications appear to load
>just a tad quicker, but in my opinion it was not worth it to upgrade
>drives.
>
> (BTW, I used Norton Ghost 9 to copy the old image to the new SATA drive)
>
> So is my (no significant increase in speed) pretty typical, or have I
> neglected something in the upgrade process? Or, do I need to buy another
> drive and use RAID 0 to notice any significant speed differences?
Machines with XP, can boot quite quickly with a modern drive, especially
on a 'clean' install (copying, will have brought quite a lot of 'dross'
with it). However the speed gains from reasonably recent drives, are not
large. Remember that the interface 'speed', is like a speed limit, and
unlike on most modern roads, where cars can more or less all reach the
specified limit, for hard drives, the data rate from the platters of even
the fastest available drives will not exceed even ATA100 rates. You only
gain from the faster interface speed, when the data is already waiting in
the cache, or when you are writing the first small piece of data that can
fit into the cache. After this, the limit is the media data rate, and this
has only increased by a few percent per annum over the last few years. If
your ATA100 drive, was the WD caviar, this had one of the fastest raw
platter data rates of a drive from a couple of years ago, and a seek
time/latency time, that matches the best current IDE units. The gains then
would be small, and probably only visible when moving larger amounts of
data. SATA150 drives are not 1.5* as fast as a ATA100 drive. In most
cases, the 'gain' is probably only perhaps 10 to 15% (if that...).
Best Wishes