Is this a new installation? I don't mean to cause you more work, but if you are just now deploying SIM 7.2 + IRSA, you might want to go right to SIM 7.3 + IRS 7.10 (on a different CMS). If you have all Gen8 systems, and you do not have to monitor anything in the excluded support list for IRS 7.10, you will save yourself a lot of work later.
A test event from the OA's/blade iLO's should work, but it depends how you discovered them (should be via OA first, then iLOs, etc). You should not have to remove anything to test a service event. You may want to log into the SEA tool to see if the systems show up as warning entries, meaning something is missing (location information, serial numbers, etc). Check the records in SIM to make sure all data is there - IP, serial number, host name, and location/contact details are there or the even may not get forwarded to HP properly. The SEA tool (cmshostname:7906) will also show you a list of service events and if they failed for any reason. Add yourself as the main email contact for SEA so you can see if there are ever any service event failures. The IRSA tool will also show you if any of this data is missing (the actual entries would be red for RS data, or possibly not enabled/entitled).
