Appendix B: Power Control Procedures; Power Control Procedure Considerations; Powering Off Procedures For Powerstore Node - Dell EMC PowerStore 500T Installation And Service Manual

Learn how to power down and power up the system.
Topics:
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Power control procedure considerations

•

Powering off procedures for PowerStore node

• Powering on procedures for PowerStore node
• Rebooting procedures for a PowerStore node
• Powering off procedures for PowerStore appliances
• Powering on procedures for PowerStore appliances
• Powering off procedures for PowerStore cluster
• Powering on procedures for PowerStore cluster
Power control procedure considerations
Note the following before you get started:
● Powering off a node, appliance, or cluster can take several minutes to complete.
● In a true emergency power off situation, turn the cabinet power switches to the off position to immediately remove power
from the all cabinet components.
● Working with hardware may cause electrostatic discharge that could damage your hardware. Before working with any
hardware, take precautions around handling replaceable units.
● If you are relocating or replacing hardware, to help identify associated enclosures when you are ready to cable and power on:
○ Ensure that you make a note of the cabling between enclosures and the appliances. If you used cable labels at the time of
initial installation, reconnecting the cables is easier.
○ Ensure that you also record the Dell service tag numbers of all enclosures in your cluster.
● Nodes in the appliance power on into the same mode they were in before the appliance was powered off. If a node powers
on in service mode:
1. Log in to the appliance from an SSH client.
2. Run the svc_rescue_state clear command to clear the boot mode.
3. Run the svc_node reboot command.
Once rebooted, the node returns to normal mode.
For more information about the service scripts, see the PowerStore Service Scripts Guide.
● If both nodes in an appliance reboot in service mode, always return Node A to normal mode first to avoid management
software conflicts. After Node A is operating normally, you can return Node B to normal mode.
● Before powering down an appliance with metro volumes, ensure that the role of the metro volumes on the appliance are all
set to non-preferred. Refer to the Protecting Your Data guide for details about setting metro volume roles.
Powering off procedures for PowerStore node
This section includes the following procedures:
● Power off a PowerStore T model node using PowerStore Manager
● Power off a PowerStore T model node using a service script
114 Power control procedures
Power control procedures
on page 115
on page 115
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