From owner-freebsd-hardware@FreeBSD.ORG Wed Feb 9 02:57:56 2011 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C9FFD106566B for ; Wed, 9 Feb 2011 02:57:56 +0000 (UTC) (envelope-from dieterbsd@engineer.com) Received: from imr-ma02.mx.aol.com (imr-ma02.mx.aol.com [64.12.206.40]) by mx1.freebsd.org (Postfix) with ESMTP id 8A8D08FC13 for ; Wed, 9 Feb 2011 02:57:56 +0000 (UTC) Received: from imo-da03.mx.aol.com (imo-da03.mx.aol.com [205.188.169.201]) by imr-ma02.mx.aol.com (8.14.1/8.14.1) with ESMTP id p192ljIT004068 for ; Tue, 8 Feb 2011 21:47:45 -0500 Received: from dieterbsd@engineer.com by imo-da03.mx.aol.com (mail_out_v42.9.) id n.bf9.87c02caf (37532) for ; Tue, 8 Feb 2011 21:47:41 -0500 (EST) Received: from smtprly-db01.mx.aol.com (smtprly-db01.mx.aol.com [205.188.249.152]) by cia-mb01.mx.aol.com (v129.8) with ESMTP id MAILCIAMB015-5bc84d5200438b; Tue, 08 Feb 2011 21:47:41 -0500 Received: from web-mmc-m02 (web-mmc-m02.sim.aol.com [64.12.224.135]) by smtprly-db01.mx.aol.com (v129.8) with ESMTP id MAILSMTPRLYDB017-5bc84d5200438b; Tue, 08 Feb 2011 21:47:31 -0500 To: freebsd-hardware@freebsd.org Content-Transfer-Encoding: quoted-printable Date: Tue, 08 Feb 2011 21:47:31 -0500 X-MB-Message-Source: WebUI X-AOL-IP: 67.206.161.198 X-MB-Message-Type: User MIME-Version: 1.0 From: dieterbsd@engineer.com Content-Type: text/plain; charset="us-ascii" X-Mailer: Mail.com Webmail 33189-STANDARD Received: from 67.206.161.198 by web-mmc-m02.sysops.aol.com (64.12.224.135) with HTTP (WebMailUI); Tue, 08 Feb 2011 21:47:31 -0500 Message-Id: <8CD961AD4EE6A77-1804-38AC@web-mmc-m02.sysops.aol.com> X-Spam-Flag: NO X-AOL-SENDER: dieterbsd@engineer.com Subject: Re: Addonics SIS3124 Controller and T X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Feb 2011 02:57:56 -0000 Jose Amengual writes: > 1.- I can see just only from ada0 to ada6 I don't see any other HDs. Are both of the JMB393s configured as individual drives port multiplier mode? (as opposed to some hardware raid mode) I assume you've already checked the cables. > 2.- Performance is just 131 MBs per second as report from diskinfo -t This is for an individual drive, correct? How fast do you expect it to be? Have you tried connecting individual drives to the 3124 controller and tested the performance that way? >From what you've written, the bottleneck could be the controller, the port multiplier, or the drive itself. 131 MB/s sounds about right for a single drive, unless it is some super high performance drive or you are reading from the drive's RAM rather than from the platters. I can get 253 MB/s reading from a drive's RAM. Useful for seeing what controllers, port multipliers and such can do without the limits of the platter density. (the platter density goes up as new generations of drives come out) I'd be interested in knowing what the 3124 controller and the JMB393 PM can do.