Access control list. In order to assign a board to a domain with the addboard command, the board name must be listed in the access control list (ACL). The ACL is checked when a domain makes an addboard or a testboard request on that board. On the Sun Fire 3800 system, all power supplies have switches on them to power them on. These power supplies must be listed in the ACL.
When a board state is assigned, the slot belongs to a domain but the hardware is not necessarily tested and configured for use. The slot can be given up by the domain administrator or reassigned by the platform administrator.
A firmware feature that detects and diagnoses hardware errors that affect the availability of a platform and its domains.
When a board state is available, the slot is not assigned to any particular domain.
Capacity on Demand (COD) is an option that provides additional processing resources (CPUs) when you need them. These additional CPUs are provided on COD CPU/Memory boards that are installed in Sun Fire 6800/4810/4800/3800 systems. You can access the COD CPUs after you purchase the COD right-to-use (RTU) licenses for them.
Component health status. The component maintains information regarding its health, including the diagnosis information generated by the auto-diagnosis (AD) engine.
A domain runs its own instance of the Solaris operating environment and is independent of other domains. Each domain has its own CPUs, memory, and I/O assemblies. Fireplane switches are shared between domains in the same segment.
The domain administrator manages the domain.
The switchover of the main system controller to its spare or the system controller clock source to another system controller clock source when a failure occurs in the operation of the main system controller or the clock source.
A crossbar switch, also referred to as a Repeater board, that connects multiple CPU/Memory boards and I/O assemblies. Having the required number of Fireplane switches is mandatory for operation. There are Fireplane switches in each midframe system except for the Sun Fire 3800. In the Sun Fire 3800 system, the equivalent of two Fireplane switches are integrated into the active centerplane.
See instant access CPUs.
Unlicensed COD CPUs on COD CPU/Memory boards installed in Sun Fire 6800/4810/4800/3800 systems. You can access up to a maximum of four COD CPUs for immediate use while you are purchasing the COD right-to-use (RTU) licenses for the COD CPUs. Also referred to as headroom.
The platform administrator manages hardware resources across domains.
See Fireplane switch.
A segment, also referred to as a partition, is a group of Fireplane switches that are used together to provide communication between CPU/Memory boards and I/O assemblies in the same domain. You can set up the system with one segment or two segments using the system controller setupplatform command. Segments do not share Fireplane switches.