> -----Original Message-----
> From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On
> Behalf Of Moose
> Sent: Monday, June 04, 2007 6:14 PM
> To: olympus@xxxxxxxxxx
> Subject: [OM] Re: OT Notes on Upgrading - II - Disks - and a question
>
> Tom Scales wrote:
> > ...........
> > Specs aren't everything. The Seagate 750GB drives are the fastest I
> own.
> > Their density allows for a performance beyond seek times. The
> throughput is
> > amazing.
> >
> Perhaps you should download HDTune, run a benchmark and send to their
> database. http://www.hdtune.com/ Had there been one with much better
> performance than the 500 gb drives when I was researching, I might well
> have bought that.
>
> There are no benchmarks there yet for 750 gb disks. I was looking at
> 500
> gb and WD is a slightly better performer overall than the Seagate @ 500
> gb, with much more even performance, better average and max rates and a
> much higher lowest transfer rate. Benchmark seek time is little
> different, with the WD only about 5% faster.
>
> The Seagate burst rate is much higher and the WD CPU usage is much
> lower, but I have no idea what practical effects these differences
> might
> make in usage.
>
> Moose
Well, I don't have a very controlled environment, but just ran a couple HD
Tunes.
On the SATA version, I only have drives configured as two drive Raid0 arrays
(hardware on my Dimension 9200). Interestingly, although the D9200 will
support a four drive array, the max is 2TB per array, so I can't go above
two drives.
97.7Mb/s average
104.3Mb/s peak
12.1 access
I have two of the 750Gb IDE drives, but that is a headless box, so I can't
really get it in a proper config for a test. So I had to run it with AVG
still running and with too many applications running. It is also an aging
P4-2.4 box, so it isn't the 'hottest box' around.
That said, it ran
62.7Mb/s average
74.7Mb/s peak
14.9ms access
The numbers were skewed as the last 30% or so of the test something must
have kicked in to run as the numbers dropped badly. For the first 2/3 of
the test it was running right at 76Mb/s average --- pretty good for an IDE
drive.
Benchmarks aside, I've never seen a huge 'feelable' difference from a faster
drive. Some, but not a lot.
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