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- The role LB (Load Balancer), if two load balancers are used for redundancy
- The role STORE (file storage), if two file stores are setup using DRBD for redundancy
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Install PCS Services
Install the PCS packages:
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yum -y install pacemaker pcs resource-agents fence-agents-all
systemctl enable pcsd
systemctl enable corosync
systemctl enable pacemaker
systemctl start pcsd.service |
Disable Managed Services
Disable smb and haproxy since these services will be moved and managed by pacemaker:
Code Block |
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title | Disable smb and haproxy |
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systemctl disable smb
systemctl disable haproxy |
Configure the Firewall
Next configure the firewall for ha services:
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firewall-cmd --zone=public --add-service=high-availability --permanent
firewall-cmd --reload
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Configuration
Next configure the names of the machines and the virtual IP address which will be shared in the cluster:
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title | Setup hosts and create user and password |
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KE_HOST1=uk-acd-store1
KE_HOST1=uk-acd-store2
KE_VIP=10.4.8.22
useradd -m hacluster
echo fireball | passwd --stdin hacluster
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Cluster Configuration
Now configure the cluster and set some basic options:
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pcs cluster auth ${KE_HOST1} ${KE_HOST2} -u hacluster -p fireball --force
pcs cluster setup --force --name portal ${KE_HOST1} ${KE_HOST2}
pcs cluster enable --all
pcs cluster start --all
pcs property set stonith-enabled=false
pcs property set no-quorum-policy=ignore
pcs resource defaults migration-threshold=1
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Test
Check the results: