From owner-freebsd-scsi Wed Sep 8 13:32: 3 1999 Delivered-To: freebsd-scsi@freebsd.org Received: from arjun.niksun.com (gw.niksun.com [206.20.52.122]) by hub.freebsd.org (Postfix) with ESMTP id 1847914C87 for ; Wed, 8 Sep 1999 13:31:58 -0700 (PDT) (envelope-from ath@niksun.com) Received: from stiegl.niksun.com (stiegl.niksun.com [10.0.0.44]) by arjun.niksun.com (8.8.8/8.8.8) with ESMTP id QAA18194; Wed, 8 Sep 1999 16:31:51 -0400 (EDT) Received: from stiegl.niksun.com (localhost.niksun.com [127.0.0.1]) by stiegl.niksun.com (8.9.2/8.8.7) with ESMTP id QAA74557; Wed, 8 Sep 1999 16:31:49 -0400 (EDT) (envelope-from ath@stiegl.niksun.com) Message-Id: <199909082031.QAA74557@stiegl.niksun.com> From: Andrew Heybey To: Andrew Gallatin Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: data corruption when using aic7890 In-reply-to: Your message of Wed, 08 Sep 1999 15:41:36 -0400. <14294.47942.226648.687089@grasshopper.cs.duke.edu> Mime-Version: 1.0 (generated by tm-edit 7.108) Content-Type: text/plain; charset=US-ASCII Date: Wed, 08 Sep 1999 16:31:49 -0400 Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org >> Well, if you find anything that works, please let me know. I've >> mostly abandoned this problem for now (except for prowling the >> mailing lists hoping to find that someone else has solved it) >> because I have too many other things to do and there is a >> workaround (use the 40MB/s connector). However, I'd love to get >> my performance back... gallatin> What!?? You mean if I just move the cable to the 20Mhz gallatin> connector, all my problems will just go away??? Even gallatin> though its just a different port on the same PCI gallatin> controller? (at least on my P2B-LS) Well, I don't know if *your* problems will go away (I'm not 100% sure that your problem is the same as my problem). However, my problem went away went I moved the cable to the plain "Ultra" (20MHz) connector rather than the "Ultra2" (40MHz) connector. Peak performance is lower (at least with multiple disks on the bus). Sorry, I thought that I had mentioned this someplace. Maybe I should submit a follow-up to the PR to mention this work-around. andrew To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message