Two scenarios for IBM hard partitioning will be covered in this document:

1. Dedicated LPAR.
2. Micro-partitioning, containing both Capped and Uncapped micro partitions in Multi Shared-Processor Pool.

Oracle licensing calculation

Dedicated LPAR

Whole processors that are assigned to a single partition.

Scenario:

Two LPARs with Dedicated CPUs. Only one of them (LPAR1), has installed Oracle product (Oracle DB).

Information that we need: We need Entitled Capacity (EC) for each Dedicated LPAR

Calculation:

• LPAR1 has EC = 6 CPUs -> 6 Licensable CPUs.
• Processor license needed:
  • Licensable CPUs * Processor Factor = 6 * 1.0 = 6 Processor Licenses

Micro-partitioning, Capped & Uncapped LPARs

Ability to distribute the processing capacity of one or more physical processors among one or more logical
partitions.

• Capped micro-partition – processing capacity can never exceed the Entitled capacity (EC) of the

micro-partition

• Uncapped micro-partition – processing capacity can exceed the Entitled capacity when resources are

available in their Shared-Processor Pool and the micro-partition is eligible to run.

• Virtual Processor is the upper limit of processor utilization for uncapped partitions

Scenario:

Information that we need: We need to calculate Licensable Processor separately for each Shared-processor
pool and then sum them up. We need information about the number of Active CPUs per pool. For each LPAR
that has Oracle Product installed we need to find the mode (Capped/Uncapped), Entitled Capacity and Online
Virtual CPUs.

Calculation:

1. Shared Processor pool 1
   1. LPAR1, mode: Capped = 1.6 EC
   2. LPAR2, mode: Uncapped = 5 OVC
   3. Total: a. + b. = 6.6 Processors
   4. Active CPUs in pool = 5
   5. Minimum from c. and d. = 5 Processors
2. Shared Processor pool 2
   1. LPAR4, mode: Uncapped = 2 OVC
   2. Active CPUs in pool = 3
   3. Minimum from a. and b. = 2 Processor
3. Total processor that needs to be licensed: (1. + 2.) * Processor Factor = (5 + 2) * 1.0 = 

7 Processor Licenses

IMPORTANT NOTES: 

1. There can be more servers combined and shared pool processors set on them. From a licensing

perspective, this should be treated as one server with a sumurized number of processors.

       2. The rounding up of the license requirement calculation needs to be on the highest licensable

entity. We should minimize the error that can occur with the round number of licenses.