AIX remove a filesystem

# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
loglv00 jfslog 1 1 1 closed/syncd N/A
lv00 jfs 1 1 1 closed/syncd /fs1
loglv01 jfs2log 1 1 1 open/syncd N/A
fslv00 jfs2 1 1 1 closed/syncd /fs2
testlv jfs2 1 1 1 open/syncd /test
# rmfs /test
rmfs: 0506-921 /test is currently mounted.
# umount /test
# rmfs /test
rmlv: Logical volume testlv is removed.
# lsvg -l testvg
testvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
loglv00 jfslog 1 1 1 closed/syncd N/A
lv00 jfs 1 1 1 closed/syncd /fs1
loglv01 jfs2log 1 1 1 closed/syncd N/A
fslv00 jfs2 1 1 1 closed/syncd /fs2
# cat /etc/filesystemsgrep test
#