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Here are screenshots of the resulting benchmark testing of
the 7200.9 and 7200.10 drives:
Seagate Barracuda 7200.9
500GB ATTO Disk Benchmark
0.5 to 1024 kB, 32MB length,
Queue Depth of 10

We were initially puzzled as to
why there was a drop in read speed at 4k and 8k. We
ran the test a couple more times just to be sure, but this
was definitely the pattern of the product. Perhaps
Seagate can examine this further and make some firmware
changes. Nevertheless, performance is impressive,
showing close to 40MB/s read and write speeds, with write
speeds unusually edging out reads.
Seagate Barracuda 7200.9
500GB HDTach 3.0.1.0 Disk Benchmark
8MB Zones
32MB Zones

Variable Zones
HDTach tests are very thorough
and took close to an entire 24-hour day for just one run.
This is because of the massive size of the drive.
Burst speed shows in excess of 230MB/s, way beyond the
150MB/s of SATA-1. Random access time is around 14mS,
a bit slow. 50+MB/s for an average read speed is very
good, and CPU utilization of 6% is also on the high side.
Seagate Barracuda 7200.10 750GB ATTO Disk Benchmark
0.5 to 1024 kB, 32MB length,
Queue Depth of 10

Again we see a drop in read speed at
2k, 4k and 8k. We
ran the tests a couple more times just to be sure, but this
was definitely the pattern of the drives. Performance is
a bit more impressive,
showing close to in excess of 40MB/s read and write speeds, with write
speeds again unusually edging out reads.
Seagate Barracuda 7200.10
750GB HDTach 3.0.1.0 Disk Benchmark

8MB Zones

32MB Zones

Variable Zones
For the 750GB drive, the HDTach
tests took even longer.
Burst speed shows in excess of 250MB/s, way beyond the
150MB/s of SATA-1, and approaching the limits of SATA-2. Random access time is
below 14mS,
slightly faster than the 7200.9. 66+MB/s for an average read speed is
excellent, and CPU utilization of 5% is still high, but an
improvement over the 7200.9.
Seeing that the 7200.10 is truly
BIG AND FAST, we decided to verify that SATA-2 and some kind
of command queuing was taking place. Here is what the
Properties page of the nF4 Pro looked like:

Yup, it's there allright.
SATA-2 and CQ. Very cool. But hey, look, a speed
test button...

According to nVidia's Speed Test
utility, the 7200.10 bursts at 202.4 MB/s, and averages
about 78.4 MB/s. Not exactly the same as the other
tests, but extremely impressive to say the least.
You'd have thought it was a 10k SCSI drive!
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