Posted by Matthew L. Martin on 04/23/06 13:37

Roy L. Fuchs wrote:

>
> This is why the new perpendicular technology

The technology isn't new. Those of us who were following the future of
hard drive storage were reading the white papers in the early '80s. If a
whole host of other (read cheaper) tricks and gimmicks hadn't worked,
perpendicular would have been trotted out a long time ago.

> will likely be only on
> 1" and 2.5" form factors.

Then I guess this doesn't exist.

<http://www.seagate.com/docs/pdf/marketing/po_barracuda_7200_10.pdf>

To reduce costs, keep transfer rates manageable and keep drives
capacities from being disruptive, drive makers using perpendicular
magnetic technology have gone back to RLL encoding. When the market can
absorb multi-terabyte drives PRML and EPRML (or some better encoding)
will be used. Those drives will have 2-8 TB capacity and 600MB/S
transfer rates.

> Smaller is better, faster, less massive,
> etc., etc.

It's very likely that 3.5" drives will continue to dominate for a long
while. There are real costs to making things tiny. Until 2.5" and
smaller drives get an MTBF above 1M hours, they can't be considered
seriously for enterprise use.

Matthew

--
I'm a contractor. If you want an opinion I'll sell you one.
Which one do you want?

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