From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 8 Jun 2001 20:00:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 8 Jun 2001 20:00:29 -0400 Received: from e34.co.us.ibm.com ([32.97.110.132]:47099 "EHLO e34.bld.us.ibm.com") by vger.kernel.org with ESMTP id ; Fri, 8 Jun 2001 20:00:21 -0400 Importance: Normal Subject: Re: question about scsi generic behavior To: hiren_mehta@agilent.com Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org X-Mailer: Lotus Notes Release 5.0.3 (Intl) 21 March 2000 Message-ID: From: "David Chambliss" Date: Fri, 8 Jun 2001 16:49:29 -0700 X-MIMETrack: Serialize by Router on D03NM042/03/M/IBM(Release 5.0.6 |December 14, 2000) at 06/08/2001 04:59:00 PM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I think you need to set bpt=8 . It is possible to set some drives to block sizes other than 512 bytes, and hardcoding 512 is not a good idea, especially in code that might last a while. In a few years we might have 4096-byte blocks to let the drives use more powerful error correcting codes. David Chambliss Research Staff Member, Computer Science /Storage Systems IBM Research Division (408) 927-2243 (TL 457-2243) FAX (408) 927-3497