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I need to apply Windows patches on SCOM 2 management, 8 gateway and 1 DB servers. I don't want the alerts from the agents.
Can I put gateway and SCOM DB servers in to maintenance mode? Is it a good strategy? Ofcourse, I will be doing this manually.
Hi,
Never put a SCOM Management or Gateway server in maintenance mode, configuration distribution, the heartbeat feature, and other features for the system might become unreliable.
Here's an important note from the official Microsoft documentation about SCOM maintenance mode:
Reference:
https://learn.microsoft.com/en-us/troubleshoot/system-center/scom/maintenance-mode
If you need to patch your SCOM servers and you do not have any redundancy, then you should simply disable the alert notifications, this way you will not receive any alerts, except for the ones in the Operations Console.
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(If the reply was helpful please don't forget to upvote or accept as answer, thank you)
Best regards,
Leon
Hi Leon,
Thanks for your reply. In fact, we are running our SCOM in multi-tenant environment; hence we got heaps of subscriptions and there are chances once I enable the subscriptions alerts start floating to the clients. I also thought about putting all agents in to maintenance mode but couldn't figure out how can I exclude the agents that are already in the maintenance mode because I don't want to update their maintenance schedule with the new one or maybe I not thinking right.
Well you can also simply put all agents into maintenance mode, but that might put some more pressure on your SCOM servers, but should either way be doable.
You can create a PowerShell script that checks for all your SCOM agents which are not in maintenance mode, the list of SCOM agents that you get as a result can then be put into maintenance mode.
Hi @Pauciloquent ,
to backup Leon's words, here is the relevant part on the Microsoft Learn site:
From:
Operations Manager maintenance mode
We don't recommend that you put management servers into maintenance mode. Configuration distribution, the heartbeat feature, and other features for the system might become unreliable. If you put a management server into maintenance mode, alerts, notifications, rules, monitors, automatic responses, state changes, and new alerts that are generated on the management server will be suppressed. The health service on the management server continues to run. Alerts, notifications, rules, monitors, automatic responses, state changes, and new alerts from other agent-managed computers will be processed and displayed as appropriate.
This does not apply to DB servers, but they are also not associated with the Management Group agents in any way.
I hope this helps also.
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(If the reply was helpful please don't forget to upvote or accept as answer, thank you)
Regards,
Stoyan