Hi All,
I have SCOM 2012 SP1 CU5 and have few questions on Maintenance Mode (MM).
1) I put my 800 agents in MM for 300 minutes and they get into "Not Monitored" state. When I pull all these 800 agents out of MM together they remain in "Not Monitored" state for about 2 to 3 hours. They get into healthy state slowly during these 3 hours. Is this expected? Shouldn't they all get healthy quickly? Is the number of agents slows the process and so they take time to get into Healthy State?
2) When I pull my agents out of MM and after they get healthy, I get flood of alerts for them like Health service heartbeat failure, failed to connect to computer., low free disk space, etc. Why is this so as they were in MM and not healthy?
3) When the servers come out of MM, will all the workflows (rules and monitors) run again and generate alerts? even if their alerts (previously created) are already Active in SCOM ?
4) While rebooting the SCOM servers during maintenance activity, what should be the sequence among Management Servers, DB server, DW Server, Reporting Server, Gateway Servers, Web console servers ?
Thanks, S K Agrawal