Turning Off The Compute Node - Lenovo Flex System x480 X6 Compute Node Installation And Service Manual

• You can turn on the compute node through the CMM power command, the CMM web interface, Lenovo
XClarity Administrator (if available), or Flex System Manager management software if available.
– For more information about the CMM power command, see the "Flex System
Chassis Management Module: Command-Line Interface Reference Guide" at
http://pic.dhe.ibm.com/infocenter/flexsys/information/topic/com.lenovo.acc.cmm.doc/cli_ command_
power.html.
– From the CMM web interface, select Compute Nodes from the Chassis Management
menu. All fields and options are described in the CMM web interface online help. For
more information, see the "Flex System Chassis Management Module: User's Guide" at
http://pic.dhe.ibm.com/infocenter/flexsys/information/topic/com.lenovo.acc.cmm.doc/cmm_user_guide.html.
– For more information about the Lenovo XClarity Administrator, see https://support.lenovo.com/us/en/
documents/LNVO-XCLARIT.
– For more information about Flex System Manager management software,
see the "Flex System Manager Software: Installation and Service Guide" at
http://pic.dhe.ibm.com/infocenter/flexsys/information/topic/com.ibm.acc.8731.doc/product_
page.html.
• You can turn on the compute node through the Wake on LAN feature. The compute node must be
connected to power (the power LED is flashing slowly) and must be communicating with the Chassis
Management Module. The operating system must support the Wake on LAN feature, and the Wake on
LAN feature must be enabled through the Chassis Management Module interface.

Turning off the compute node

Use this information for details about turning off the compute node.
When you turn off the compute node, it is still connected to power through the Lenovo Flex System chassis.
The compute node can respond to requests from the IMM2, such as a remote request to turn on the compute
node. To remove all power from the compute node, you must remove it from the Lenovo Flex System chassis.
Before you turn off the compute node, shut down the operating system. See the operating-system
documentation for information about shutting down the operating system.
The compute node can be turned off in any of the following ways:
• The compute node can turn off automatically as part of the operating system shutdown process (if this
feature is supported by the operating system). See your operating-system documentation for more
information.
• You can press the power button on the compute node (see "Compute node controls, connectors, and
LEDs" on page 14). This starts an orderly shutdown of the operating system, if this feature is supported
by the operating system.
• If the operating system stops functioning, you can press and hold the power button for more than 4
seconds to turn off the compute node.
Pressing the power button for 4 seconds forces the operating system to shut down immediately. Data
loss is possible.
• When you press the power-control button on any compute node in a single partition (controlled by one
operating system), all compute nodes in the single partition will be turned on or turned off.
• You can turn off the compute node through the CMM power command, the CMM web interface, Lenovo
XClarity Administrator (if available), or Flex System Manager management software (if available).
– For more information about the CMM power command, see the "Flex System
Chassis Management Module: Command-Line Interface Reference Guide" at
19
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Chapter 1 Introduction