HP ProLiant SL210t Gen8 Plus Server Maintenance and Service Guide

Removal and replacement procedures 22
If you must remove the chassis from a rack or a component from the chassis or node, then you must
power down the nodes. If only one node needs to be serviced, you only need to power down that node.
If you are going to service the RCM module, you must power down all nodes in the chassis.
• Remove the chassis from the rack.
• Remove the nodes from the chassis ("Remove the node from the chassis" on page 23).
If the rack environment, cabling configuration, or the chassis location in the rack creates unstable
conditions, then remove the nodes from the chassis.
• Remove the access panel.
Power down the system
IMPORTANT: When the nodes are in standby mode, auxiliary power is still being provided to
the system.
1. Power down the nodes ("Power down the node" on page 22).
2. Disconnect the power cords from the power supplies.
Power down the node
Before powering down the node for any upgrade or maintenance procedures, perform a backup of critical
server data and programs.
IMPORTANT: When the node is in standby mode, auxiliary power is still being provided to the
system.
To power down the node, use one of the following methods:
• Press and release the Power On/Standby button.
This method initiates a controlled shutdown of applications and the OS before the node enters standby
mode.
• Press and hold the Power On/Standby button for more than 4 seconds to force the node to enter
standby mode.
This method forces the node to enter standby mode without properly exiting applications and the OS.
If an application stops responding, you can use this method to force a shutdown.
• Use a virtual power button selection through iLO.
This method initiates a controlled remote shutdown of applications and the OS before the node enters
standby mode.
Before proceeding, verify the node is in standby mode by observing that the system power LED is amber.
Power up the nodes
The SL Chassis Firmware initiates an automatic power-up sequence when the nodes are installed. If the
default setting is changed, use one of the following methods to power up each node:
• Use a virtual power button selection through iLO.
• Press and release the Power On/Standby button.