[Linux-HA] Reg pe-input-*raw files

[Shiney James]

I find that lots of these files pe-input*raw, pe-warn*raw and pe-error*raw
are getting generated in /var/lib/heartbeat/pengine. I would like to know
what these files are for. Also, I understand that the these files hold
transition graphs. Are these files read by tengine from the disk. Will
deleting these files give any problem with HA functionality?