krenair@deployment-ms-be05:~$ cat /etc/udev/rules.d/40-swift_storage_labs.rules
ENV{DM_LV_NAME}=="lv-a1", ENV{DM_VG_NAME}=="vd", SYMLINK+="swift/lv-a1"krenair@deployment-ms-be05:~$ 
krenair@deployment-ms-be05:~$ udevadm info /dev/dm-0 | grep DM_LV_NAME
E: DM_LV_NAME=lv-a1
krenair@deployment-ms-be05:~$ udevadm info /dev/dm-0 | grep DM_VG_NAME
E: DM_VG_NAME=vd
krenair@deployment-ms-be05:~$ udevadm info /dev/dm-0 | grep S: | grep swift
krenair@deployment-ms-be05:~$ ls /dev/swift/ -lh
ls: cannot access '/dev/swift/': No such file or directory