Re: performance over multiple disks

[Chris Wedgwood <cw@xxxxxxxx>]

On Thu, Oct 31, 2002 at 08:42:33PM +0100, Ragnar Kj?rstad wrote:

> If you do the same calculations when multiple operations are going
> on at the same time you'll find that if you're reading 10 files from
> 10 disks it's going to be a lot quicker if the files are _not_
> spread out.

More disks -> more heads -> lower average seek time.


If you experiment with this, you'll find eads over multiple disks and
stripping is almost *always* faster.  RAID4/RAID5 will have slower
writes obviously though.



   --cw