Power On And Power Off The Node; Power On The Node; Power Off The Node - Lenovo ThinkSystem SD530 V3 User Manual

Table 22. Memory mirroring with two processors (continued)
Note:
† Sub NUMA Clustering (SNC2) feature can only be enabled when DIMMs are populated in this specified sequence. The
SNC2 feature can be enabled via UEFI.
‡ DIMM configurations that support Software Guard Extensions (SGX), see
on page 190 to enable this feature.

Power on and power off the node

Follow the instructions in this section to power on and power off the node.

Power on the node

After the node performs a short self-test (power status LED flashes quickly) when connected to input power,
it enters a standby state (power status LED flashes once per second).
Power button location and power LED are specified in:
• Chapter 2 "Hardware components" on page 21
• "Troubleshooting by system LEDs and diagnostics display" on page 205
A node can be turned on (power LED on) in any of the following ways:
• You can press the power button.
• The node can restart automatically after a power interruption.
• The node can respond to remote power-on requests sent to the Lenovo XClarity Controller.
For information about powering off the compute node, see

Power off the node

The node remains in a standby state when it is connected to a power source, allowing the Lenovo XClarity
Controller to respond to remote power-on requests. To completely power off the node (power status LED
off), you must disconnect all power cables.
Power button location and power LED are specified in:
• Chapter 2 "Hardware components" on page 21
• "Troubleshooting by system LEDs and diagnostics display" on page 205
To place the node in a standby state (power status LED flashes once per second):
Note: The Lenovo XClarity Controller can place the node in a standby state as an automatic response to a
critical system failure.
• Start an orderly shutdown using the operating system (if supported by your operating system).
• Press the power button to start an orderly shutdown (if supported by your operating system).
• Press and hold the power button for more than 4 seconds to force a shutdown.
When in a standby state, the node can respond to remote power-on requests sent to the Lenovo XClarity
Controller. For information about powering on the compute node, see
"Enable Software Guard Extensions (SGX)"
"Power off the node" on page
"Power on the node" on page
.
Chapter 5 Hardware replacement procedures
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