IBM JS20 Hardware Maintenance Manual - Page 24
Turning, blade, server, Blade, controls
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Turning off the blade server When you turn off the blade server, it is still connected to power through the BladeCenter unit. The blade server can respond to requests from the service processor, such as a remote request to turn on the blade server. To remove all power from the blade server, you must remove it from the BladeCenter unit. Shut down the operating system before you turn off the blade server. See the operating-system documentation for information about shutting down the operating system. If the blade server has not been turned off, it can be turned off in any of the following ways: v You can press the power-control button on the blade server (behind the control panel door). This starts an orderly shutdown of the operating system, if this feature is supported by the operating system. Note: After turning off the blade server, wait at least 5 seconds before you press the power-control button to turn on the blade server again. v If the operating system stops functioning, you can press and hold the power-control button for more than 4 seconds to turn off the blade server. v The management module can turn off the blade server. Note: After turning off the blade server, wait at least 30 seconds for its hard disk drives to stop spinning before you remove the blade server from the BladeCenter unit. Blade server controls and LEDs This section describes the controls and LEDs on the blade server. Power-control button: This button is behind the control panel door. Press this button to manually turn the blade server on or off. Note: The power-control button has effect only if local power control is enabled for the blade server. Local power control is enabled and disabled through the BladeCenter management-module Web interface. 14 BladeCenter JS20 Type 8842: Hardware Maintenance Manual and Troubleshooting Guide
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