df -h

Filesystem      Size  Used Avail Use% Mounted on
udev            492M   12K  492M   1% /dev
tmpfs           100M  376K   99M   1% /run
/dev/xvdd1      2.0T  1.1G  1.9T   1% /
none            4.0K     0  4.0K   0% /sys/fs/cgroup
none            5.0M     0  5.0M   0% /run/lock
none            497M     0  497M   0% /run/shm
none            100M     0  100M   0% /run/user

sudo lsblk -o NAME,LABEL

NAME    LABEL
xvda
└─xvda1 cloudimg-rootfs
xvdb
└─xvdb1 cloudimg-rootfs
xvdc
└─xvdc1 cloudimg-rootfs
xvdd
└─xvdd1 cloudimg-rootfs