Question about the pullup dependency

Hi,
I have a basic question about the pullup dependency. On a 11.2.0.4 Grid Infrastructure installation I have two simple resources with those profiles:

[grid@ractest1 acfs_mount]$ cat resource1Profile.txt
ACTION_SCRIPT=/u01/acfs_mount/monitoring_sctipt.sh
PLACEMENT=restricted
HOSTING_MEMBERS=ractest1 ractest2
CHECK_INTERVAL=30
RESTART_ATTEMPTS=2

[grid@ractest1 acfs_mount]$ cat resource2Profile.txt
ACTION_SCRIPT=/u01/acfs_mount/monitoring_sctipt.sh
PLACEMENT=restricted
HOSTING_MEMBERS=ractest1 ractest2
CHECK_INTERVAL=30
RESTART_ATTEMPTS=2
START_DEPENDENCIES=hard(resource1) pullup:always(resource1)
STOP_DEPENDENCIES=hard(resource1)

The action script is taken from here: http://docs.oracle.com/cd/E11882_01/rac.112/e41959/resatt.htm#CWADD91497