What is the data transfer rate in the newest Hard Drives ?

For ide drives the burst transfer rate is up to 133mbps (theoretical) with ATA-133, but the actual sustained rate will be much lower...

For my system partition, 19.5GB on a 40GB drive, 7200 rpm, ATA-100 drive, I get sustained Read speeds from 28-34 mbps and sustained write speeds from 22-39 mbps (according to CliBench Mk III 0.7.14)

An ATA-133 drive might be a little faster, but it's not real likely (except for data transfers from cache)...the bottleneck is the drive itself (spin, read and write speeds), not the interface...


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When all else fails, read the instructions.

This is where the new Serial ATA standard is coming in; supposedly you'll get sustained thru-put rates of data at anywhere from 300-600 MB's per sec!

Go here, Serial ATA (http://www.serialata.org/), for some more info on this promising new tech. Imagine, only 4 wires to fool with instead of that clumsy 40/80 wire cable!

This is taken directly from a Serial ATA brief;
Parallel ATA cannot scale to support several more speed doublings, and is nearing its
performance capacity. By contrast, Serial ATA’s roadmap starts at 1.5 gigabits per second
(equivalent to a data rate of 150 MB/s) and migrates to 3.0 gigabits per second (300 MB/s), then
to 6.0 gigabits per second (600 MB/s). This roadmap supports up to 10 years of storage
evolution, based on historical trends.

Impressive , huh?



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iisbob

CPU= 5mhz
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My ultimate gaming system :)

I'm a little skeptical of those numbers...there is going to have to be a MAJOR change in the physical structure and operation of the drives for the interface to be able to provide those throughputs...

Areal density and spin rates on the drives are going to have to go way up before those transfer rates can happen. The interface alone is not going to provide it except in exceedigly short-duration bursts...

Unless of course you stripe 100 drives together http://www.PCGuide.com/ubb/wink.gif

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When all else fails, read the instructions.

[This message has been edited by hiredgoonz (edited 01-28-2002).]