From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Tony Battersby" Subject: RE: U160 on sym53c8xx very slow Date: Mon, 20 Oct 2003 09:48:41 -0400 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <03Oct20.094816edt.332465@cyborg.cybernetics.com> References: Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from cyborg.cybernetics.com ([206.246.200.18]:41226 "EHLO cybernetics.com") by vger.kernel.org with ESMTP id S262569AbTJTNsX (ORCPT ); Mon, 20 Oct 2003 09:48:23 -0400 In-Reply-To: List-Id: linux-scsi@vger.kernel.org To: 'nico' , linux-scsi@vger.kernel.org > sym0: Symbios NVRAM, ID 7, Fast-80, SE, parity checking SE == Single-ended You are using a single-ended terminator, which limits the SCSI bus to 40 MB/s bandwidth. Try a LVD terminator which should give you the full 160 MB/s. But remember that this only increases the speed at which data can burst over the SCSI bus, not the speed at which the disk can access the media. Anthony J. Battersby Cybernetics