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nodeN# apt install ocfs2-tools nodeN# cat /etc/ocfs2/cluster.conf cluster: node_count = 2 name = ocfs2cluster node: number = 1 cluster = ocfs2cluster ip_port = 7777 ip_address = 192.168.X.1 name = node1 node: number = 2 cluster = ocfs2cluster ip_port = 7777 ip_address = 192.168.X.2 name = node2 node1# mkfs.ocfs2 -L "CephVol" /dev/mapper/mpatha nodeN# cat /etc/default/o2cb ... O2CB_ENABLED=true ... O2CB_BOOTCLUSTER=ocfs2cluster ... nodeN# o2cb register-cluster ocfs2cluster nodeN# systemctl enable o2cb ocfs2 nodeN# systemctl start o2cb ocfs2 nodeN# cat /etc/fstab ... /dev/mapper/mpatha /disk3 ocfs2 defaults,heartbeat=local 0 0