Hello Plamen,
All links are present in the source system.
# ls -l /dev/mapper/vgdata*
brw-rw---- 1 root disk 253, 12 Apr 22 2013 /dev/mapper/vgdata1-data203977_u08
brw-rw---- 1 root disk 253, 4 Mar 12 2012 /dev/mapper/vgdata-data203584_u01
brw-rw---- 1 root disk 253, 7 Mar 12 2012 /dev/mapper/vgdata-data203590_u02
brw-rw---- 1 root disk 253, 9 Mar 12 2012 /dev/mapper/vgdata-data203591_u03
brw-rw---- 1 root disk 253, 10 Mar 12 2012 /dev/mapper/vgdata-data203592_u04
brw-rw---- 1 root disk 253, 6 Mar 12 2012 /dev/mapper/vgdata-data203593_u05
brw-rw---- 1 root disk 253, 8 Mar 12 2012 /dev/mapper/vgdata-data203628_u06
brw-rw---- 1 root disk 253, 5 Mar 12 2012 /dev/mapper/vgdata-data203629_u07
# ls -ld /dev/vgdata*
drwxr-xr-x 2 root root 180 Mar 12 2012 /dev/vgdata
drwxr-xr-x 2 root root 60 Apr 22 2013 /dev/vgdata1
# ls -lR /dev/vgdata*
/dev/vgdata:
total 0
lrwxrwxrwx 1 root root 33 Mar 12 2012 data203584_u01 -> /dev/mapper/vgdata-data203584_u01
lrwxrwxrwx 1 root root 33 Mar 12 2012 data203590_u02 -> /dev/mapper/vgdata-data203590_u02
lrwxrwxrwx 1 root root 33 Mar 12 2012 data203591_u03 -> /dev/mapper/vgdata-data203591_u03
lrwxrwxrwx 1 root root 33 Mar 12 2012 data203592_u04 -> /dev/mapper/vgdata-data203592_u04
lrwxrwxrwx 1 root root 33 Mar 12 2012 data203593_u05 -> /dev/mapper/vgdata-data203593_u05
lrwxrwxrwx 1 root root 33 Mar 12 2012 data203628_u06 -> /dev/mapper/vgdata-data203628_u06
lrwxrwxrwx 1 root root 33 Mar 12 2012 data203629_u07 -> /dev/mapper/vgdata-data203629_u07
/dev/vgdata1:
total 0
lrwxrwxrwx 1 root root 34 Apr 22 2013 data203977_u08 -> /dev/mapper/vgdata1-data203977_u08