ceph 清理

1. 删除ceph

ceph-deploy purge A B C

ceph-deploy purgedata A B C

2. 卸载osd，删除对应目录

umount /var/lib/ceph/osd/*

rm -rf /var/lib/ceph /var/run/ceph /etc/ceph

3. 卸载vg

pvscan & vgremove ceph-…… -y

4. 清理设备

sgdisk --zap-all /dev/sdA

dd if=/dev/zero of="A" bs=1M count=100 oflag=direct,dsync

ls /dev/mapper/ceph-* | xargs -I% -- dmsetup remove %

rm -rf /dev/ceph-*