License Allocation - Sun Microsystems SPARC Enterprise M4000 User Manual

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.
License allocation does not change during a Service Processor reboot or failover. All
licenses remain allocated to their resources.
You can reserve COD licenses for specific domains by using the setcod command.
After power on, reserved licenses are first allocated to their domains, and then
remaining licenses are allocated on a first-come, first-served basis to the remaining
resources. When a domain is powered off, the reverse happens: first the unreserved
licenses are released to the pool, then the reserved licenses are released.
For example, assume your server had 10 COD licenses and you reserved them for
these domains:
PROC RTUs reserved for domain 0: 4
PROC RTUs reserved for domain 1: 2
PROC RTUs reserved for domain 2: 0
PROC RTUs reserved for domain 3: 0
When the domains were first powered on, four licenses would be assigned to
domain 0 and two to domain 1. The remaining four licenses would be available on a
first-come, first-served basis to all four domains (0, 1, 2, and 3).
4 Sun SPARC Enterprise Mx000 Servers Capacity on Demand (COD) User's Guide • September 2007