On Mon, 2003-10-27 at 14:00, Lars Marowsky-Bree wrote: > On 2003-10-27T13:41:20, > Mark Bellon <mbellon@mvista.com> said: > > > Initial availability of User-Space System Device Enumeration (uSDE) > > package, version 0.74, can be found at http://sourceforge.net/projects/usde > > How does it relate to udev? > > > multipath-policy - handles the automatic provisioning of multipathing > > for multiported storage devices. > > How does this integrate with DM, md, EVMS, LVM...? > Device mapper and the md layer generates hotplug events which are managed by the framework. There is no specific policy for these subsystems, but they could be implemented... With today's code, they fall through and are exported as disks. One good policy method that could be implemented is to scan the lvm lv list and map the major/minor to the real lv, and use that to name the device (instead of lvm naming the device). This hasn't been done but if your up for it, Mark can probably help you. One of the cool features that integrates with MD is that multiple paths are automatically configured via the MD driver (similiar to the automatic multipathing program I have written and posted to this list). Basically that program was turned into a policy for the uSDE. The code your looking for if you want to see how the multipath policy works is in: sde/programs/policy-methods/mass-storage/multipath Thanks! -steve > Thanks, > Lars Marowsky-BrÃe <lmb@suse.de> - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
