Hard Drive Speed

[Alan Cox]

> However, if one adds a black box containing  bunch of drives, a CPU and 
> cache management software, well it's not really a disk drive any more, 
> even of the host sees it as one.

More fundamentally - we've gone from 20MB capacity, 25ms seek time,
280Kbyte/second to 500GB capacity, 14mS seek time, 60MB/second +

The cost of seeks has gone through the roof in proportion - in fact it
gets ever more tape like.

Alan