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Serial ATA
hard drives are beginning to show up in [slightly] larger numbers on the
retail shelves and order pages of our favorite vendors. The transition
has been painfully slow and I still can't say that I'm happy with the
current speed of market movement. There are lots of rumors and press
releases floating around the web about drives that are coming, but we've
barely been able to get a really good look at what's available right
now--until now. Maxtor has graced our labs with an offering from the Flaghship product-line, the Diamond Max Plus 9.
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Specifications
The drive comes
available in either parallel (ATA/133) or Serial ATA (SATA/150). The Parallel
ATA versions come with either two megabytes or eight megabytes of on-drive cache
while the Serial ATA version is only available with an eight megabyte buffer
(isn't that just horrible news). The
2 megabyte cache models are only available with a Parallel ATA interface and in
capacities of 60 Gig, 80 Gig, 120 Gig and 160
Gigabytes. The 8
megabyte buffer models (either parallel/serial ATA) are available in 60 Gig, 80 Gig, 120 Gig, 160 Gig, and an
overwhelming 200 Gigabyte capacity. Fluid Dynamic Bearing (FDB) motors are
utilized to reduce the audible signature of the drive, with decibel ratings of
2.7dB at an idle spin, and only 3.5dB during seek strokes.
Hard drives
are inherently fragile by the nature of their construction -- meticulously
coated platters with drive heads that glide on pads of air only microns above a
surface spinning at 7,200 RPM. Drives from the good ol' days, like the Intel
8088 and 80286 era, would crash if you slammed a desk drawer shut at the wrong
time. Evolution and incredibly higher engineering standards have made those days
all but ancient history. Maxtor engineers have raised the bar yet again with
their own G-shock protection scheme called the Shock Protection System™. They have increased the ruggedness of their drives to insure
reliability against poor handling, especially during the critical shipping and
installation phases. Protection levels are rated at 60Gs of shock during
operational periods (power on) and 300Gs during non-operating periods
(power-off).
Data
Integrity should be the last thing you worry about when you click the Save
button on any project, unless you're using a good ol' 3½ Floppy Disk. The folks
at Maxtor think so too, and have incorporated the Data Protection System™
(DPS). Think of the DPS as a built-in-test (bit) routine that constantly
monitors the status of the drive and all data written to the platters during
operation. This goes beyond the Self
Monitoring Analysis and Reporting Technology (S.M.A.R.T.) found in nearly all
modern hard drives. Since the mechanical parts of the drive are given an
expected life-cycle of five years, there stands to reason that some form
of physical change can be expected in the inner-workings of the drive. Be it in
the response time of the read/write head servos, expansion/change in the platter
surface or some other change in tolerance. The DPS keeps tabs on all
factors regarding the condition of written data and will make changes according
to inputs to the controller, making the drive ready to accept the challenge of
longevity.
Performance Specs:
| Rotational
Speed |
7,200
RPM |
| Average
Seek |
≤
9.4ms |
| Average
Latency |
4.2
ms |
| Aerial
Density |
80
Gigabytes per Platter |
| Maximum
Internal Transfer Rate |
448
Megabytes per Second |
| Sustained
External Transfer Rate |
56
Megabytes per Second |

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