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#!/bin/bash
yum -y install gdisk
read -p "input your disk [/dev/sdb]:" DISK
# 磁盘去格式化
# DISK="/dev/sda"
# 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 $DISK
dd if=/dev/zero of="$DISK" bs=1M count=100 oflag=direct,dsync
# 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-*
lsblk -f