The server can be in one of these states:
No power is applied to the server. For example, when the power cords are not connected, or the data center power breaker is off.
Power is applied to the server, the SP is running, but main power is not applied to the system or the host(s). You can access Oracle ILOM on the SP in the Standby state.
The system and the host(s) are powered on. After the system boots the OS in the host(s), you can access the OS.
When the host is powered on, it can be in one of these states:
The operating system is running in one of these levels:
3 – The OS is running in multiuser mode with all resources enabled.
S – The OS is running in single-user mode and some resources are not enabled.
The OS is not running. You communicate with the OpenBoot firmware on the host.
The host automatically attempts to boot when you reset or start the host if the OpenBoot auto-boot? variable is set to true and the Oracle ILOM auto-boot property is enabled. In addition, other Oracle ILOM properties can affect the power state of the host, and thus, the boot behavior. This table explains how the HOST_AUTO_POWER_ON property and the HOST_LAST_POWER_STATE property affect the host power state.
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