Re: [dm-devel] dmsetup target parameters

[christophe varoqui free fr]

> > 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 :

# 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.

regards,
cvaroqui