From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Bellon Subject: Re: ANNOUNCE: User-space System Device Enumation (uSDE) Date: Mon, 27 Oct 2003 14:14:18 -0700 Sender: linux-raid-owner@vger.kernel.org Message-ID: <3F9D8AAA.7010308@mvista.com> References: <3F9D82F0.4000307@mvista.com> <20031027210054.GR24286@marowsky-bree.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20031027210054.GR24286@marowsky-bree.de> To: Lars Marowsky-Bree Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids > > >How does it relate to udev? > The uSDE and udev are simlar in some respects. The uSDE allows for complete control of the policy handling a device - not just its naming. It can perform complex policies on behalf of its devices including multiple concurrent policies for each device. It is also very aggressive about handing the system start up issues when many devices must be dealt with. >How does this integrate with DM, md, EVMS, LVM...? > As devices appear in sysfs the uSDE reacts to them via their hotplug events. The policy for each device handles any device issues including dealing with any device nodes. It is possible to track and maintain multiported devices and automatically provide multipath devices nodes for instance. mark