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Chapter 7 Capacity on Demand 77
Although a COD license can be used by any COD processor, it cannot be moved
from one server to another. A COD license is limited to the processors on a specific
server. If those processors are moved to another server, the license becomes invalid.
License Installation
A license key is comprised of text lines, which can be added to the COD license
database. A single license key can grant access to multiple RTUs, as specified when
the key is generated.
After you purchase a license, you must install the license keys in the COD license
database. The license database is stored in nonvolatile memory on the Service
Processor. In a system with more than one Service Processor, failover of the COD
license database is supported. COD locks its license keys to the individual Chassis
HostID of the system.
In case the license database is lost or corrupted, make sure you keep copies of your
licenses and license keys.
License Allocation
The software allocates COD licenses automatically on a first-come, first-served basis.
However, you can reserve licenses if you want to make sure a specific number of
COD licenses are allocated to a particular domain.
Licenses are allocated to COD resources either when a domain with a COD board is
powered on or when a new COD board is installed and powered on.
At board power on, the Service Processor determines which processing resources are
in working order and requests licenses for them. The COD software checks its
license database and current usage, determines which boards are COD boards, and
allocates licenses to their resources. It then tells the Service Processor which
resources to configure into the domain.
The Service Processor configures only the COD resources approved by the COD
licensing software. Any COD resource that remains unlicensed is not configured into
the domain and is assigned a COD-disabled status.
When you remove a COD board from a domain through a reconfiguration operation,
when a domain containing a COD board is shut down normally, or when the Service
Processor detects a fault and unconfigures a board from the domain, the COD
licenses for the resources on those boards are released and added to the pool of
available licenses.