CEPH: Ceph how to uninstall a Ceph cluster

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So... ya f*cked it all up and want to start again - luckily, there's a command for that

<snip>

  1. This was run on the ceph-deploy node, in the ~/ceph directory where the keys and ceph.conf were stored.

cd ceph ceph-deploy purge ceph-osd1 ceph-osd2 ceph-osd3 ceph-deploy purgedata ceph-osd1 ceph-osd2 ceph-osd3 # this failed as device/resource busy. guess a reboot will sort but cant tests that atm. to be updated. </snip>

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