Setup postgreSQL slave volumn

postgresql-slave-volume

# Check whether EBS volume already attached
lsblk

# Check EBS volume filesystem
sudo file -s /dev/xvdf

# If type of filesystem still 'data' it means no filesystem yet, we have to create it
sudo mkfs -t ext4 /dev/xvdf

# Mount it for data directory
sudo mkdir -p /var/lib/postgresql
sudo mount /dev/xvdf /var/lib/postgresql

# Check configuration is correct
mount

# Setup fstab to persist mounting even after reboot
## Backup fstab
sudo cp /etc/fstab /etc/fstab.org

## Find and note uuid of the EBS volume
sudo file -s /dev/xvdf

## Add new entry on /etc/fstab
sudo vim /etc/fstab
UUID=<volume-uuid>       /var/lib/postgresql   ext4    defaults,nofail        0       2

## verify all is working and no error !IMPORTANT!
sudo mount -a

## Reboot the system to check
sudo reboot