From owner-freebsd-scsi@FreeBSD.ORG Tue Mar 30 21:20:15 2004 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 E85DA16A4CE for ; Tue, 30 Mar 2004 21:20:15 -0800 (PST) Received: from mx1.webspacesolutions.com (ns1.webspacesolutions.com [216.74.11.68]) by mx1.FreeBSD.org (Postfix) with SMTP id B0CCC43D45 for ; Tue, 30 Mar 2004 21:20:15 -0800 (PST) (envelope-from nick@webspacesolutions.com) Received: (qmail 5484 invoked by uid 507); 31 Mar 2004 05:20:15 -0000 Received: from nick@webspacesolutions.com by ns1.webspacesolutions.com by uid 504 with qmail-scanner-1.20rc1 (clamuko: 0.65. spamassassin: 2.55. Clear:RC:1:. Processed in 0.09461 secs); 31 Mar 2004 05:20:15 -0000 Received: from 24-205-247-185.ata-cres.charterpipeline.net (HELO beastie) (24.205.247.185) by mx1.webspacesolutions.com with SMTP; 31 Mar 2004 05:20:15 -0000 From: "Nick Twaddell" To: Date: Tue, 30 Mar 2004 21:19:58 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.5510 Thread-Index: AcQW389MzUFp76nwSA2K3NcJWV5ZSQ== X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 X-Qmail-Scanner-Message-ID: <10807104156355479@ns1.webspacesolutions.com> Message-Id: <20040331052015.B0CCC43D45@mx1.FreeBSD.org> Subject: Raid drive speeds 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, 31 Mar 2004 05:20:16 -0000 I just connected to maxtor atlas 15k 73gig drives to my adaptec 2120S controller. On boot this is what it says pass0: Fixed unknown SCSI-3 device pass0: 160.000MB/s transfers (80.000MHz, offset 127, 16bit) pass1 at aacp0 bus 0 target 1 lun 0 pass1: <8737OR ATLAS15K_73SCA DP60> Fixed unknown SCSI-3 device pass1: 26.400MB/s transfers (64bit) Why does it say one drive is 160MB transfers, and the other is 26.400MB transfers. Both drives are ultra320 and they seem to show up as ultra320 in the adaptec bios? Thanks Nick ---------------------------------------------------------------------------- -------- Nick Twaddell Web Space Solutions Ph: (805) 704-4038 Fx: (805) 434-2477