Re: [dm-devel] dmsetup target parameters

[Mike Christie <mikenc us ibm com>]

christophe varoqui free fr wrote:

> > > It seems you already got what you want : just verify you have that
> >
> > /udev/$wwid node.
> >
> > How are you making this node? For me the dm sysfs name is dm-* (dm does 
> > not look like it currently supports passing a uuid to alloc_dev which 
> > sets the gendisk name), so udev is making dm-*. Is multipath or 
> > libdevmapper making it or is it udev? dmsetup ls does show the wwid though.
> > --
>
> :)
> I got greg to add a rule in the default udev.rules :

Thanks - for writing this stuff and the answer to my question :)!

> # create a symlink named after the device map name
> # note devmap_name comes with extras/multipath
> KERNEL="dm-[0-9]*", PROGRAM="/sbin/devmap_name %M %m", NAME="%k", SYMLINK="%c"
>
> devmap_name is packaged with multipath-tools.