heres output of 'ceph -s' from a kvm instance running as a ceph node.
all 3 nodes are monitors, each with 6 4gig osds.
mon_osd_full ratio: .611
mon_osd_nearfull ratio: .60
whats 23689MB used? is that a buffer because of mon_osd_full ratio?
is there a way to query a pool for how much usable space is really
available to clients? for example, in this case, 3 nodes, 6osds, 4G
each = 72G, so with a replica size of 3, id like to see something that
says close 20G available, 1.7G in use.
ceph3:~# ceph -s
cluster 2198abdb-2669-438a-8673-fc4f226a226c
health HEALTH_OK
monmap e1: 3 mons at
{ceph1=172.21.0.31:6789/0,ceph2=172.21.0.32:6789/0,ceph3=172.21.0.33:6789/0},
election epoch 16, quorum 0,1,2 ceph1,ceph2,ceph3
osdmap e104: 18 osds: 18 up, 18 in
pgmap v5557: 600 pgs, 1 pools, 1694 MB data, 432 objects
23689 MB used, 49858 MB / 73548 MB avail
600 active+clean
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