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This section describes the steps to set up and configure a Pacemaker (PCS) cluster on Ubuntu instances:
Steps:
sudo apt install pacemaker pcs fence-agents-all resource-agents
sudo passwd hacluster
sudo systemctl enable pcsd
sudo systemctl start pcsd
sudo systemctl enable pacemaker
The password should be the same on all the SQL nodes.
sudo pcs host auth sqlnode-1a sqlnode-1b sqlnode-1c
sudo pcs cluster setup sqlhacluster sqlnode-1a sqlnode-1b sqlnode-1c
sudo pcs cluster start --all
sudo pcs cluster enable --all
sudo pcs property set stonith-enabled=false
For more information, see Configure FCI - SQL Server on Linux (RHEL) - SQL Server | Microsoft Learn.