[dm-devel] dmsetup target parameters

[Mike Christie]

christophe.varoqui at 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.