+#!/usr/bin/env bash
+DISK="/dev/$1"
+# Zap the disk to a fresh, usable state (zap-all is important, b/c MBR has to be clean)
+# You will have to run this step for all disks.
+sgdisk --zap-all $DISK
+
+# These steps only have to be run once on each node
+# If rook sets up osds using ceph-volume, teardown leaves some devices mapped that lock the disks.
+ls /dev/mapper/ceph-* | xargs -I% -- dmsetup remove %
+# ceph-volume setup can leave ceph-<UUID> directories in /dev (unnecessary clutter)
+rm -rf /dev/ceph-*