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Oracle® X7 Series Servers Administration Guide

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Updated: October 2019

Server Power State Overview

The server has the following power states.

Power State
Powered off
The server is completely powered off only when the power cords are disconnected.
Standby power
In Standby power mode, the host is powered off, while the service processor is powered on. The System OK LED on the front panel blinks.
Main power
When you power on the host, the server enters Main power mode. In Main power mode, the System OK LED is steady on.
You can power the host off gracefully, or immediately.
When you power off the server gracefully, Advanced Configuration and Power Interface (ACPI)-enabled operating systems prepare the operating system before shutting it down. When you power the server off immediately, no such attempt occurs.

Caution  -  Data loss: To prevent data loss, prepare the operating system for shutdown before performing an immediate power off.

Note -  If you updated the system firmware and selected the Delay BIOS Upgrade option, when you reset or power cycle your server, Oracle ILOM installs the BIOS firmware upgrade. This causes a reset to take longer than normal and causes the server to power cycle during the reset. This is normal, expected behavior during a delayed BIOS upgrade. For more details, see Update the BIOS and Service Processor Firmware (Oracle ILOM).