From owner-freebsd-scsi Thu Apr 30 08:53:26 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA27583 for freebsd-scsi-outgoing; Thu, 30 Apr 1998 08:53:26 -0700 (PDT) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from misery.sdf.com (misery.sdf.com [204.244.213.32]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id IAA27575 for ; Thu, 30 Apr 1998 08:53:21 -0700 (PDT) (envelope-from tom@sdf.com) Received: from tom by misery.sdf.com with smtp (Exim 1.82 #3) id 0yUvEp-00010N-00; Thu, 30 Apr 1998 08:27:07 -0700 Date: Thu, 30 Apr 1998 08:27:05 -0700 (PDT) From: Tom To: Raul Zighelboim cc: "'scsi@freebsd.org'" , "'n@nectar.com'" Subject: Re: DPT driver performance In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Thu, 30 Apr 1998, Raul Zighelboim wrote: > Is there anything I can do to improve the DPT performance? Can I Is your DPT performance actually poor? You've shown that iozone looks bad, which could be a problem if your server is intended to run iozone all the time. The array settings are much more important. Things like strip size, number of drives and the RAID level used are critical. Strangely you did not even mention any of this stuff. Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message