EM Hits a Million!

If you ever get to wondering about whether Enterprise Manager 12c can scale, have a look at this:


1 million, 42 thousand and 64 targets – that’s a not inconsiderable number in anyone’s terms!

In case you’re wondering, there are 754 Apps instances in here.  EM is running on 1/4 x3-2 rac, + a few key patches.


After 22 years of working at Oracle in just about every role except Marketing and Support, I am now working as a Senior Managed Services Consultant with Data Intensity, specializing in Oracle Database technology, High Availability and Disaster Recovery solutions. I am also a member of the OakTable Network, and have presented at RMOUG Training Days, Hotsos Symposia, Oracle OpenWorld conferences, and other user group events. I have co-authored the Expert Oracle Enterprise Manager 12c and Practical Oracle Database Appliance books published by Apress, and am one of the authors of the Building Database Clouds in Oracle Database 12c book published by Addison Wesley.


  1. From the first look on the graph it looks like it is all good in this system, Unless you start looking on the number of the “Down” targets 🙂

    • Actually, Yury, just think how many targets would be down if ONE apps instance went down?

      Seriously, I worry more about “unknown” than “down”

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