/dev/md2 on /mnt/hd2 type jfs (rw)

nass@stargaze:/mnt/hd2/videos$ getfacl Movies/
# file: Movies/
# owner: nass
# group: shares
# flags: -s-
user::rwx
group::rwx
other::r-x
default:user::rwx
default:group::rwx
default:group:shares:rwx
default:mask::rwx
default:other::r-x

drwxr-sr-x+ 2 nass shares        24 Aug  6 01:12 The_Movie/

nass@stargaze:/mnt/hd2/videos/Movies$ getfacl The_Movie/
# file: The_Movie/
# owner: nass
# group: shares
# flags: -s-
user::rwx
group::rwx                      #effective:r-x
group:shares:rwx                #effective:r-x
mask::r-x
other::r-x
default:user::rwx
default:group::rwx
default:group:shares:rwx
default:mask::rwx
default:other::r-x

$ zgrep CONFIG_JFS_POSIX_ACL /boot/config-`uname -r`
CONFIG_JFS_POSIX_ACL=y