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$ rbd info vm-XXX-disk-1
rbd image 'rbdbigsize':
size 1862 PB in 500000000000 objects
order 22 (4096 kB objects)
block_name_prefix: rbd_data.047aa74b0dc51
format: 1
$ rados -p cph rm rbd_id.vm-XXX-disk-1
$ rados -p cph rm rbd_header.047aa74b0dc51
gitlab-rails console production
user = User.create(:username=>'root',:password=>'xXxXx',:password_confirmation=>'',:email=>'[email protected]',:name=>'root')
user.save!