HA NFS on Amazon Linux 2

• Will be using two t3a.larg instances in an active/passive config.
• Package installation

sudo yum upgrade -y && sudo reboot -h now
sudo yum install pcs pacemaker fence-agents-all -y

• Authorize nodes

 sudo passwd hacluster
Changing password for user hacluster.
New password:
Retype new password:
passwd: all authentication tokens updated successfully.

sudo systemctl enable --now pcsd.service

 sudo pcs cluster auth 192.168.17.132 192.168.17.164
Username: hacluster
Password:
192.168.17.132: Authorized
192.168.17.164: Authorized

• Create lvm, mount point, and deactivate the volume group.

sudo pvcreate /dev/nvme1n1
sudo vgcreate data /dev/nvme1n1
sudo lvcreate --size 195G --name nfs data
sudo mkfs.ext4 /dev/mapper/data-nfs
sudo mkdir -p /mnt/nfs
 sudo vgchange -an data
  0 logical volume(s) in volume group "data" now active

• Configure LVM for clustering

 sudo lvmconf --enable-halvm --services --startstopservices
Warning: Stopping lvm2-lvmetad.service, but it can still be activated by:
  lvm2-lvmetad.socket
Removed symlink /etc/systemd/system/sysinit.target.wants/lvm2-lvmetad.socket.