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I often hear, “My EM12c environment is slow!” and I just as often am granted access to the environment and find out that EVERYTHING is running on an old single core server with 2Gb of RAM someone found lying around. Enterprise Manager is often an after thought to many IT organizations. After all the work has gone into the production environments that build revenue, there is often a disconnect on how important information on the health and status of those revenue machines are, resulting in Enterprise Manager receiving the “cast off” servers for their hosted environment.
So today we are just going to talk about sizing out an EM12c environment- no tuning, yet, (but we’ll get to it!)
How does the team I work with decide what recommendations to make and why is it important to make those recommendations?
The questions to ask when designing or upgrading an EM12c environment are:
The basic sizing recommendations, along with recommendations to meet MAA, (Maximum Availability Architecture) are shown below, decision factors are on number of targets and users*:
Armed with this info, is your EM12c environment under-size or under-powered? Next, we’ll talk about why the database is not the only thing you should be tuning in your EM12c environment and why the SCP, (Strategic Customer Program) has so much value!*There are other factors, including features, management packs, plug-ins, etc. that can also impact the build and design of an EM12c environment for optimal performance.