Cant find out why this can happen:
Got an HEALTH_OK cluster. ceph version 0.87, all nodes are Debian Wheezy
with a stable kernel 3.2.65-1+deb7u1. ceph df shows me this:
*$ ceph df*
GLOBAL:
SIZE AVAIL RAW USED %RAW USED
*242T 221T8519G 3.43 *
POOLS:
IIRC these global values for total size and available are just summations
from the (programmatic equivalent) of running df on each machine locally,
but the used values are based on actual space used by each PG. That has
occasionally produced some odd results depending on how you've configured
your
