Power control procedures
Learn how to power down and power up the system.
Topics:
•
Power control procedure considerations
•
Power control procedures preview
•
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. See
Safety precautions for handling replaceable units
on page
107.
●
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.
●
A PowerStore X model appliance consists of two ESXi host nodes (node A and node B), running VMware ESXi version 6.7,
and a controller VM on each that runs the PowerStore operating environment. Powering off a PowerStore X model node or
cluster requires operations in the associated VMware vCenter server. See the VMware documentation for more information
about the vCenter server commands.
●
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.
○
For a PowerStore T model node, this command reboots the node itself.
○
For a PowerStore X model node, only the PowerStore controller VM gets rebooted.
Once rebooted, the node returns to normal mode.
NOTE:
The
svc_node
service script, with
reboot
and
shutdown
arguments, is typically used in the context of
rebooting or powering off a PowerStore T model node.
Use the VMware vCenter server commands to reboot or power off a PowerStore X model node. In PowerStore
X model nodes, running the
svc_node
service script with
reboot
or
shutdown
arguments only affects the
PowerStore controller VM.
Unless specifically directed by your service provider, for PowerStore X model appliances, use the
svc_node
service
script only for the following purposes:
○
Go out of service mode (
reboot
argument).
B
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Power control procedures