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Restore the HA configuration
Bring the HA configuration back online after completing the maintenance activity.
About this task
For single node systems, skip these steps.
Steps
1. Run the ha online command on the node where the maintenance was performed to bring the HA configuration back
online.
# ha online
The operation will reboot this node.
Do you want to proceed? (yes|no) [no]: yes
Broadcast message from root (Wed Jul 22 17:03:32 2020):
The system is going down for reboot NOW!
This node is changed to online state.
Node is going down for reboot.
2. Run the ha status command to verify that the HA pair is back online, and can failover.
HA System Name: datadomain-ha3a.emc.com
HA System Status: highly available
Node Name
-------------------------- --------- --------- --------
datadomain-ha3a-p0.emc.com
datadomain-ha3a-p1.emc.com
-------------------------- --------- --------- --------
3. Optionally run the ha failover command on the current active node to fail the system back to the original active node.
104
Replace a CPU
Node ID
Role
0
standby
1
active
HA State
online
online