The server is equipped with two 1030/2060 watt auto-ranging hot-swappable power supplies that support a two CPU configuration at 110–127 VAC, or two or four CPU configuration at 200–240 VAC. The dual power supply configuration provides N+N redundancy.
The server supports the following power modes, server shutdowns, and resets.
When full power mode is applied, power is supplied to all the server components, the server boots, and the operating system (OS) functions. Apply full power mode by pressing the Power button on the server front panel when the server is in standby power mode. You can also apply full power to the server from Oracle ILOM. Once the server is operating in full power mode, the System OK and service processor (SP) indicators are on steady (see Server Boot Process and Normal Operating State Indicators).
Standby power is a non-operating mode (OS does not boot), in which low-level power is supplied only to the components that are required to run the SP. To enter standby power mode, connect the AC power cables to the back of the server, but do not press the front panel Power button. You can also enter standby power mode by powering off the server from full power mode using one of the power-off methods (see below).
In standby power mode, the green SP indicator blinks while the SP is booting. Once the SP has booted, this SP indicator is steady on, and the green System OK indicator goes to standby blink (once every 3 seconds). See Server Boot Process and Normal Operating State Indicators.
A graceful shutdown (also referred to as an orderly shutdown) is the safest method of shutting down the server to standby power mode because it warns users, closes files, and prepares the file system. To perform a graceful shutdown, use the server OS, Oracle ILOM, or the server front panel Power button.
A Graceful shutdown via the Power button is done with a single (momentary) press. However, an Immediate (Emergency) shutdown via the power button is done by pressing and holding the power button for > 5 seconds.
An immediate shutdown of the server (also referred to as an emergency shutdown) should be used only in situations when you know that the loss of data is nonexistent or acceptable. An immediate shutdown does not warn users, does not properly close files, and does not gracefully shut down the operating system. Full power is immediately removed and the server goes to standby power mode.
Shutting down the server from full power mode to standby power mode does not completely remove power from the server. When it is in standby power mode, the server is in a low-power state. This low-power state is enough to maintain the service processor (SP), which runs Oracle ILOM. To completely remove power from the server, you need to remove the AC power cords.
A warm reset is a reboot or restart of the server that occurs when you cycle server power from full power mode to standby power mode and back to full power mode. For example, a warm reset might be required after a software or firmware update or when you want to launch Oracle System Assistant or the BIOS Setup Utility.
A cold reset occurs when you restart the server from a completely powered-off state. A cold reset might be required to resolve a system issue. To perform a cold reset, place the server in standby power mode, disconnect the server from its AC power source, wait 30-60 seconds, then reconnect the server to its AC power source, allow the SP to boot, and then reapply full power.
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