On Fri, Apr 20, 2007 at 05:13:05PM -0400, Gene Heskett wrote:
> And moving the holding disk would only be to another disk on that same cable, 
> only marginally faster.  It would save the seek time, but that's about it.

FWIW, that would be a *lot* faster.  The major speed problem with disks
is seek time, not bus capacity.

> That's what I was afraid of.  I have the memory buffer set at 90, and since 
> I've got a gig of ram, would increasing that be of any assistance?  OTOH, I 
> can do that and find the answer fairly quickly.  It will use 720 in the next 
> incarnation.  90 was only a bit over 2 megs, downright puny.

That may help.  A bigger buffer allows the elevator algorithm more elbow
room to schedule things with minimal seeking.

Dustin

-- 
        Dustin J. Mitchell
        Storage Software Engineer, Zmanda, Inc.
        http://www.zmanda.com/