Reference: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-using-volumes.html
Summary
lsblk
If no file system, create with:
sudo mkfs -t xfs /dev/xvdf
sudo mkdir /data
sudo mount /dev/xvdf /data
Add to fstab
sudo blkid
sudo vi /etc/fstab
UUID=aebf131c-6957-451e-8d34-ec978d9581ae /data xfs defaults,nofail 0 2