Why softlink is not created in /dev/mapper/ for new multipath devices in RHEL6?

Issue

• Softlink is not created for new multipath devices in RHEL6.
• No symlink devices created in /dev/mapper/ for newly configured multipath device.

# ls -laR /dev/ |grep dm-13
brw-------   1 root root    253,  13 Apr  9 02:24 dm-13

• Expected result.

# ls -laR /dev/ |grep dm-2
brw-rw----   1 root disk    253,   2 Apr  9 02:13 dm-2
lrwxrwxrwx  1 root root    7 Apr  9 02:13 253:2 -> ../dm-2
lrwxrwxrwx 1 root root  10 Apr  9 02:13 dm-name-mpatha -> ../../dm-2
lrwxrwxrwx 1 root root  10 Apr  9 02:13 dm-uuid-mpath-1IET\x20\x20\x20\x20\x2000020001 -> ../../dm-2
lrwxrwxrwx  1 root root      7 Apr  9 02:13 mpatha -> ../dm-2
-rw-r--r-- 1 root root  438 Apr  9 02:13 block:dm-2
lrwxrwxrwx  1 root root   27 Apr  9 02:13 b253:2 -> /devices/virtual/block/dm-2
lrwxrwxrwx  1 root root   27 Apr  9 02:13 b253:2 -> /devices/virtual/block/dm-2
lrwxrwxrwx  1 root root   27 Apr  9 02:13 b253:2 -> /devices/virtual/block/dm-2
lrwxrwxrwx 1 root root  27 Apr  9 02:13 48 -> /devices/virtual/block/dm-2