$ lsblk
$ df -h
$ sudo growpart /dev/xvdf 1
$ df -T
$ sudo yum install xfsprogs
$ sudo xfs_growfs -d /mnt
$ df -h
https://docs.aws.amazon.com/ja_jp/AWSEC2/latest/UserGuide/recognize-expanded-volume-linux.html
$ lsblk
$ df -h
$ sudo growpart /dev/xvdf 1
$ df -T
$ sudo yum install xfsprogs
$ sudo xfs_growfs -d /mnt
$ df -h
https://docs.aws.amazon.com/ja_jp/AWSEC2/latest/UserGuide/recognize-expanded-volume-linux.html