Application Agent PID file quesiton

I have  created a unix scirpt to do some task and enf of the task it will create a local file in /var/lock/abcd.lock file.

I created a application resource and put  /var/lock/abcd.lock for PidFiles attribute. The lock file is creating, but not resouce is not making as fault.

I am not sure why it is making as fault. If the lock file is there, applicaiton agent shouln't bring the resouce up?