From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: Port multiplier Date: Mon, 28 Aug 2006 22:05:43 +0900 Message-ID: <44F2EA27.9090603@gmail.com> References: <44F2984F.6030100@clear.net.nz> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0102.google.com ([64.233.162.200]:3782 "EHLO nz-out-0102.google.com") by vger.kernel.org with ESMTP id S1750783AbWH1NFv (ORCPT ); Mon, 28 Aug 2006 09:05:51 -0400 Received: by nz-out-0102.google.com with SMTP id n1so1008556nzf for ; Mon, 28 Aug 2006 06:05:50 -0700 (PDT) In-Reply-To: <44F2984F.6030100@clear.net.nz> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Richard Scobie Cc: linux-ide@vger.kernel.org Hello, Richard Scobie wrote: > I have ordered an ASUS M2N SLI Deluxe which in addition to the NVIDIA > SATA controller, has a JMicron 363 SATA controller which handles one > internal SATA connector and an external eSATA connector. > > My understanding is that the JMicron will work using kernel AHCI support > and the board BIOS has an AHCI setting. > > My hope is to be able to connect an Addonics AD5APM-E 5 disk port > multiplier module to this. From the photo and some other information at > their website, this appears to use either a Silicon Image 3124 or 3132 > chip. > > Do you think this will work, if I use the current patch 20060710 on your > Wiki? PMP support for AHCI isn't yet included in PMP patches, so, no, it won't. > If so, and it supports hotplugging, which I believe it may do, what > exactly does this mean? > > Can I power up an external enclosure containing the Addonics and 3 > drives, configured as a RAID 5 and plug it straight into the running > system? Yeap. libata should detect the new drives and attach them. > If so, can this be set up to mount automatically? Well, the kernel detects the device and notifies hotplug. The rest is upto how hotplug is configured. > Can I unmount the connected and mounted array and just unplug the array > with no further concern? The machine will survive and detach the device correctly but yet-unwritten data will be lost. -- tejun