roles:
- [osd.0, osd.1, osd.2, client.0, mon.a, mgr.x]
- [osd.3, osd.4, osd.5, client.1, mon.b, mgr.y]
- [osd.6, osd.7, osd.8, client.2, mon.c, mgr.z]
- [osd.9, osd.10, osd.11, client.3, mon.d]
- [osd.12, osd.13, osd.14, client.4, mon.e]
- [osd.15, osd.16, osd.17, client.5]
- [osd.18, osd.19, osd.20, client.6]
- [osd.21, osd.22, osd.23, client.7]
- [osd.24, osd.25, osd.26, client.8]
- [osd.27, osd.28, osd.29, client.9]
- [osd.30, osd.31, osd.32, client.10]
- [osd.33, osd.34, osd.35, client.11]
- [osd.36, osd.37, osd.38, client.12]
- [osd.39, osd.40, osd.41, client.13]
- [osd.42, osd.43, osd.44, client.14]
- [osd.45, osd.46, osd.47, client.15]
- [osd.48, osd.49, osd.50, client.16]
- [osd.51, osd.52, osd.53, client.17]
- [osd.54, osd.55, osd.56, client.18]
- [osd.57, osd.58, osd.59, client.19]
- [osd.60, osd.61, osd.62, client.20]