ceph-up-set · shipping · also Ceph up set
Up set (Ceph)
In Ceph, the up set is the ordered OSD list assigned to a placement group by CRUSH for a particular map epoch.
Related Observatory article: Up set (Ceph) on hesela.com
It describes placement, not completed data transfer; an explicit PG temp override can make the acting set differ. [1]
Relations
- related
- placement-group, ceph-acting-set
Citations
- Ceph Squid developer documentation: Peering, concepts (accessed 2026-10-13)
- Storage availability and correlated failures: placement boundaries (accessed 2026-10-13)
JSON: /data/terms/ceph-up-set.json