A friend wrote " I could not find any information on capacity planning (database) in Oracle Enterprise Manager Cloud Control 12c. The only information i could get is that, it is part of the "Chargeback and Capacity Planning" plugin. There is no documentation available on this. One of my customer was using this feature in 10g and 11g.. and now have moved to 12c and are unable to figure it out. Any pointers would be of great help."
There is no capacity planner in Oracle Enterprise Manager Cloud Control 12c right now. There is a consolidation planner. This is not a general capacity planning tool but rather a consolidation tool to access your current server workloads (CPU or memory or Network IO etc), and mathematically calculate if they can be consolidated to a physical or virtual consolidation target(s) that you specify. The SPECint benchmark is used in the case of CPU comparisons.
So far as the Chargeback and Capacity Planning Plugin that you mention, this does offer a view of the CPU and Memory etc TRENDS across the cloud infrastructure to the cloud administrator, so that the cloud admin can judge the capacity usage of the infrastructure and plan ahead for cloud infrastructure upgrades. So in that sense, it allows cloud capacity planning.,
Right now, metric historical data in EM 12c can be extracted and used for capacity planning by any customer in an external spreadsheet.