From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stan Hoeppner Subject: Re: PMP 3726 problem? Date: Wed, 29 Dec 2010 19:06:24 -0600 Message-ID: <4D1BDB10.803@hardwarefreak.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mo-65-41-216-221.sta.embarqhsd.net ([65.41.216.221]:57407 "EHLO greer.hardwarefreak.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754529Ab0L3BG0 (ORCPT ); Wed, 29 Dec 2010 20:06:26 -0500 Received: from [192.168.100.53] (gffx.hardwarefreak.com [192.168.100.53]) by greer.hardwarefreak.com (Postfix) with ESMTP id 0F6306C0B1 for ; Wed, 29 Dec 2010 19:06:25 -0600 (CST) In-Reply-To: Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org Phill Jolliffe put forth on 12/29/2010 6:44 PM: > Hi, > > I'm having probelms with a DAS401 edge store disk enclosure. I have > 4x Hitachi HDS72202 loaded into it. Wonder is this is a PMP driver > problem? > Unfortunately I have less than 50% chance on any given system startup > that the disks are detected. As best I can tell the the DAS401 uses a > SiI3726 Port-Multiplier built into the enclosure. I connect this to > the mobo single esata builtin port. 1. Have you tried the PCIe x1 eSATA card that came bundled with your unit? Does it work properly using that card? 1. Have you tried more than 1 eSATA cable? 3. Do you have any equipment of any kind, that generates EMI or RFI, in close proximity (1 meter) to the PC, disk box, or the cable? This would include high voltage transformers (florescent lights), low voltage transformers (wall warts--cell charger, cordless drill charger, etc), electric pencil sharpeners, paper shredders, anything with an electric motor, a cordless phone/base unit, anything electronic that could be injecting noise into the eSATA cable? Having these answers make troubleshooting easier, especially the answer to #1 above. -- Stan