3 - volumes: # attached to each instance
11 osd default pool size: 2
12 osd pool default pg num: 128
13 osd pool default pgp num: 128
17 journal_collocation: true
18 osd_auto_discovery: false
20 ceph_stable_release: luminous
21 osd_scenario: collocated
22 ceph_origin: repository
25 - [mon.a, osd.0, osd.1, osd.2, rgw.0]
26 - [osd.3, osd.4, osd.5]
27 - [osd.6, osd.7, osd.8]