[Pacemaker] how to prevent auto relocation of recources to old primary?

[Juha Heinanen]

i tried the apache web server example of DRBD HowTo 1.0 with small changes:

1) replaced "webserver" primitive with "mysqlserver" primitive
2) removed "location" primitive, since i don't care which node the resources
   run.

when i shutdown the current primary, the resources get moved ok to secondary,
but when the old primary comes back up, the resources are automatically
relocated back to the it.  why is that and how to prevent it?

-- juha