Awaken monit daemon every few hours for all monitored processes

It's not necessary to monitor individual HP agents with Monit. Plus, they're all tied together with the wrapper service, hp-snmp-agents. Restarting one independently of the rest will have undesirable effects.

While it's possible to debug the HP agent logs, I think you may have an issue with your old kernel (looks like RHEL/CentOS 5.5) and possibly old HP management agents. The HP agents you should be using are at the SDR repository.

For the ProLiant DL3xx G7 platform, you'll need the newest version of the following packages:

hp-snmp-agents, hpssa, hp-health, hp-smh-templates, hpsmh, hpssacli, hponcfg