Earlier this week, I posted on how the OMS/Microsoft Monitoring Agent (MMA) can be dual-homed for multiple OMS Workspaces.
A good question from the community came up (thank you @ Manoj Mathew), “Have you noticed any performance impacts on the Agents when they are multi homed to OMS?“
In the OMS Query below — making use of OMS’ Log Analytics, I checked the performance data in the last 48 hours. Unfortunately I cannot go any further, since the MMA was deployed earlier in that day, and the second OMS workspace was added later that afternoon.
There are a few spikes in the Memory and CPU, but this is also a result of a few factors:
- Initially there is a high level of CPU/Memory usage as OMS did its stuff when the MMA/OMS made friends and synced up their data/solutions
- There is a small spike when the second OMS workspace was added but this is minimal at best
- This server was being patched with 90+ Windows Server OS patches around 8PM.
The query I used to collect the data is here,
Computer="COMPUTERNAME.FQDN" Type=Perf (CounterName="Available MBytes" OR CounterName="% Processor Time") (ObjectName=Memory OR ObjectName=Processor)
A second question being asked here is, “how many OMS Workspace IDs can be added to “dual-home” the MMA agent?“
Unfortunately I only have 3 OMS Workspace’s to work with at the moment in this environment, but with that said, I can surely say a minimum of 3. If you have the ability to test more than 3, I would love to find out!
Thx for the update!!
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Were your test Servers also connected to an On- Prem SCOM Infra? I happen to notice CPU spikes & SCOM Alerts show up on a few of the servers.The spikes were linked to MMS Agent. Removed them from OMS & the CPU utilization came back to normal.
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@Manoj, negative. This server is only communicating with OMS — no SCOM infra linked here.
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separate issue – but can you have OMS and SCOM on the same box?
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do you mean having a SCOM management server and OMS gateway on the same box?
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or do you meaning having the MMA pointing to SCOM and OMS? then yes you can.
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yes – having MMA point to both SCOM and OMS. thanks for clarification
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If you have SCOM in place, you can add a server or a group of servers that also communicate to OMS.
https://scomandothergeekystuff.com/2015/09/04/connecting-operations-management-suite-oms-to-scom/
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