cbowlby/resource-agents — comment on commit 0627b3d660a2eff19e9038304555eef572b7794c
File: heartbeat/dhcpd line 222
By cbowlby:

Well, I can't find any documentation on the ocf_is_probe function or definition, so I was not entirely certain what it did, but based on the name I assumed that it prevented code from running if something was already being looked at. I don't know where the probe comes into play, but figured if it had anything to do with testing available resources, it should only check those resources if they are actively available, and not already being validated.

If, for instance, running a drbd partition on the chrooted path comes into play, then I wanted to make sure it was not being accessed when it should not be.