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Oracle Licensing (Processor Based)


This had always been confusing to me but not now, hence this blog post.

Generally Oracle licenses come in three types:

  1. Processor Based
  2. User License

We will discuss only Processor Based here.

Oracle considers a factor called “core element”, which changes from underlying hardware used. For instance, in case of AMD or Intel the core element factor is 0.5 i.e. if a database server is installed on a single quad core processor then the total number of processors as per oracle is 0.5 * 1 CPU * 4 core = 2 Oracle processor. This means that oracle is going to charge for 2 processors.

Generally database server deployment goes on a server with dual quad core system in that case the formula goes 0.5 * 2 CPU * 4 core = 4 Oracle Processor. This means that oracle is going to charge for 4 processors.

The concept slightly changes if you are installing on a virtual machine. For this Oracle is going to charge for underlying cores used by VM machine not the cores or CPUs allotted for a VM. If there are multiple VMs hosted on the server, oracle is going to charge you for the cores of the server not VM!!!

Also the “core element” changes from Intel to Sun to other vendors, you may check the resource here

Hope this helps some one.

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