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Whats the overhead on the client that runs and publishes data for the Systems Center Operations Manager? Most of the data that I want are the perfmon counters. In general, I don't worry to much about the performance overhead for the perfmon counters and will collect data on them about once a minute. That said, I have no idea what the overhead on the management client is. Is it comparable to perfmon? Or should I be thinking about things completely differently?
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The SCOM sample frequency for performance counters is less then perfmon with most performance counter at a single sample every 5 - 15 minutes. High resolution counters will sample a few times a minute. That said SCOM would more likely be configured to collect a larger cross section of counters for baselining. I would allow for an overhead of 5-10% CPU time. As there can be a lot things happening at one time. However the impact can be completely tuned to exactly what you want. Everything can be disabled or enabled as required. Running a large environment of 500+ servers I would say that the impact is insignificant but it completely depends on the implementation. SCOM server side it's a different question and there are calculator tools for capacity management. Hope that helps. | |||
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