On Thu, May 10, 2001 at 10:14:54AM -0600, Chris Jones wrote:
> On Thu, May 10, 2001 at 08:30:52PM +0930, Brett Lymn wrote:
> 
> > According to Chris Jones:
> > >
> > >Is it normal to expect write performance to be that much worse than
> > >read performance?  Why would I have one disk that writes as fast as it
> > >reads?
> > >
> > 
> > Same amount of cache memory on the disks?  Are the mode pages the same
> > on both disks?  One managed to negotiate sync or something like that?
> 
> I have two identical Seagate Barracudas, only one of which writes
> fast.  So they've got to have the same cache.  And I checked that they
> were using the same speed, tagged queueing, etc.  So maybe the mode
> pages are the only thing left.
> 
> If I weren't in the middle of a home remodel, I might write a utility
> to play with mode pages -- it would be good for NetBSD to have.

Yes, this is something scsictl should be able to do :)

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
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