On some agent server configurations, the following types of log messages may appear whenever the up.time Monitoring Station attempts to contact the agent:
Jun 25 19:19:20 server1 kernel: cdrom: open failed. Jun 25 19:24:19 server1 last message repeated 2 times Jun 25 19:29:31 server1 last message repeated 2 times
This issue is a symptom of potential configuration changes required on the agent server and not an up.time agent problem.
The most likely configuration change required is to filter cdrom devices from the /etc/lvm/lvm.conf file on the agent server.
For example, change:
From: filter = [ "a/.*/" ] To: filter = [ "r|/dev/cd.*|", "r|/dev/dvd.*|", "a/.*/" ].