purgedata - Purge (delete, destroy, discard, shred) any Ceph data (ceph µ¥ÀÌÅÍ Á¦°Å)
purge - Remove Ceph packages from remote hosts and purge all (ceph ÆÐÅ°Áö »èÁ¦)
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# ceph-deploy purge <host1> <host2> <host3>
# ceph-deploy purgedata <host1> <host2> <host3>
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# ceph-deploy install --release <Ceph_Version> <host1> <host2> <host3>
# ceph-deploy admin <host1> <host2> <host3>
# ceph-deploy osd create --data /dev/sda <host1>