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To: John Biddle who wrote (7342)2/16/1998 4:01:00 PM
From: Gottfried  Read Replies (1) | Respond to of 9124
 
John, when data is arranged in cylinders you still read from one
head at a time, because there is only one read channel. Head to
head switching is faster than accessing a new track.

Yes, >>By reading from all heads simultaneously, and reassembling
the data electronically, you could raise the throughput significantly.
<<

If that was the bottleneck and you didn't mind the cost for the
extra read channels. There are, I believe, disk drive arrays
that read simultaneously from each of the drives.

I think for desk top drives costing less than 5 cents per MB
retail, every additional dollar counts. All of the things
you suggest can be done if the customer needs it and is
willing to pay for it.

GM



To: John Biddle who wrote (7342)2/16/1998 4:04:00 PM
From: Hungry Investor  Read Replies (1) | Respond to of 9124
 
John,

>>By reading from all heads simultaneously, and reassembling the data electronically, you could raise the throughput significantly.<<

Is there that much of a problem with the throughput to justify a 10-15% increase in the cost of a drive? Also the complexity of this type of scenario would add many additional costs besides the actual heads. Would the average consumer be willing to pay for the extra throughput speed??? How much would the company have to spend to educate the user on the differences?? Also creates problems in the assembly lines, we now would need new lines (additional cost) to build these new type of drives....just when the industry is trying to standardize things as much as possible to reduce the cost per drive.

Its a nice thought, but I'm sure that it has been thought of by the R&D departments of all the big drive makers, and I'm sure they all came up with the fact that the additional cost per drive isn't worth reducing the seek time by 1/3-1/2 or increasing the throughput.

Just my 2 cents,

Scott.



To: John Biddle who wrote (7342)2/17/1998 2:20:00 AM
From: JDP  Read Replies (1) | Respond to of 9124
 
To quote MP, "It's not a question of how he grips it, man, it's a question of thrust to weight ratio." I don't care how they do it, the important point is will Quantum make money at doing it.
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