Date: Thu, 11 Jul 1996 12:32:55 +0100 (BST) From: Mark Powell <mark@ucsalf.ac.uk> To: "Daniel M. Eischen" <deischen@iworks.InterWorks.org> Cc: freebsd-questions@freebsd.org Subject: Re: Does Adaptec 7880 Ultra support simultaneous wide and narrow transfers? Message-ID: <Pine.BSI.3.94.960711123023.411B-100000@plato.ucsalf.ac.uk> In-Reply-To: <9607111025.AA10945@iworks.InterWorks.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, 11 Jul 1996, Daniel M. Eischen wrote: > When did you get your -stable system? There were some bug fixes that were incorporated > into the aic7xxx driver in late June. Make sure you're running a -stable after that > date. Cheers, that seems to have fixed it. ~900K/s now. Still I thought two 7200rpm drives would be at least in the M/s range? > If you want to increase performance, add option "AHC_TAGENABLE" to your kernel > configuration. If all your devices handle tagged queueing properly, then you > can try adding "AHC_SCBPAGING_ENABLE" to your kernel configuration also. Okay, done both. Seems okay. Drive seems to make a different noise on boot-up now. Different seek patterns with the new code or just pure imagination? > For devices on both internal narrow and wide channels, you should have termination > set to Low Off / High On. Already done that. Many thanks for the help though. > Dan Eischen > deischen@iworks.InterWorks.org Mark Powell - Senior Network Technician - Room: C806 Computer Services Unit, University College Salford, Salford, Manchester, UK. Tel: +44 161 745 3376 Fax: +44 161 736 3596 Email: mark@ucsalf.ac.uk finger mark@ucsalf.ac.uk (for PGP key) <A HREF="http://www.ucsalf.ac.uk/~mark/">Home Page</A>
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSI.3.94.960711123023.411B-100000>