From owner-aic7xxx Fri May 26 15: 1:16 2000 Delivered-To: aic7xxx@freebsd.org Received: from mistral.atd.ucar.edu (mistral.atd.ucar.edu [128.117.84.100]) by hub.freebsd.org (Postfix) with ESMTP id B780F37B887 for ; Fri, 26 May 2000 15:01:14 -0700 (PDT) (envelope-from chris@raf.atd.ucar.edu) Received: from raf.atd.ucar.edu (syrah [128.117.84.206]) by mistral.atd.ucar.edu (8.8.8+Sun/8.8.8) with ESMTP id QAA02295 for ; Fri, 26 May 2000 16:01:14 -0600 (MDT) Message-ID: <392EF429.DC185BB6@raf.atd.ucar.edu> Date: Fri, 26 May 2000 16:01:13 -0600 From: Chris Webster Organization: NCAR Research Aviation Facility X-Mailer: Mozilla 4.72 [en] (X11; U; Linux 2.2.14-5.0 i686) X-Accept-Language: en MIME-Version: 1.0 Cc: aic7xxx@freebsd.org Subject: Internal = .5MB/sec, External >= 5MB/sec References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-aic7xxx@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org I have two drives taken out of an external enclosure, which I mounted internally. If they are plugged into any internal Adaptec controller I get .5MB/sec of write speed (read is typically 6MB/sec). If I hook it up to an external adapter (same actively terminated LVD/SE cable) everything works fine. Specifics: Intel L440GX+ motherboard with 2 onboard 7896/7 adapters. Using those adapters, I get .5MB/sec. After adding a 2940UW PCI card and plugging the drives into the internal adapter on that I still get .5MB/sec. However, if I move the same cable to the external adapter everything works. This has been reproduced on a completly different computer (w/ Adaptec 7890/1 & 7880). Any [useful?] insight would be outstanding. --Chris To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe aic7xxx" in the body of the message