From owner-freebsd-scsi@FreeBSD.ORG Wed Dec 10 08:28:39 2003 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4B8B816A4CE for ; Wed, 10 Dec 2003 08:28:39 -0800 (PST) Received: from sockar.homeip.net (tourist.net1.nerim.net [62.212.109.212]) by mx1.FreeBSD.org (Postfix) with ESMTP id BAAA643D2E for ; Wed, 10 Dec 2003 08:28:36 -0800 (PST) (envelope-from amon@sockar.homeip.net) Received: from sockar.homeip.net (localhost [127.0.0.1]) by sockar.homeip.net (8.12.9p2/8.12.9) with ESMTP id hBAGU3pd016188 for ; Wed, 10 Dec 2003 17:30:03 +0100 (CET) (envelope-from amon@sockar.homeip.net) Received: (from amon@localhost) by sockar.homeip.net (8.12.9p2/8.12.9/Submit) id hBAGU2hP016187 for freebsd-scsi@freebsd.org; Wed, 10 Dec 2003 17:30:02 +0100 (CET) (envelope-from amon) Date: Wed, 10 Dec 2003 17:30:02 +0100 From: amon@sockar.homeip.net To: freebsd-scsi@freebsd.org Message-ID: <20031210173002.B206@ra.aabs> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i Subject: Performance problem with adaptec 2120S X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Dec 2003 16:28:39 -0000 hi, I have a problem with my new adaptec 2120S, I cannot get more than 3 MB/s when writing to it. My card has firmware 4.0-0[6008] and is connected to an sca backplane with 3 ultra 160 disks on it, all in a single RAID 5 volume. The card is plugged in a 32 bits/33 Mhz pci slot and the installed freebsd version is 4.9-R. When I do a file transfer from another box, I see in systat that aac0 is 100% busy at 3MB/s during the copy. Since this card is U320, I sincerely hope it can do better but I couldn't find the source of the problem. I tried setting all devices at 160MB/s non packetized in the controller config with no luck. Same thing with other disks. Is this a known issue ? I can provide full dmesg if necessary. -- Herve Boulouis