repair-locality · shipping · also erasure-code locality

Repair locality

Repair locality is the number of helper fragments needed to recover a missing fragment under a specified erasure-code repair procedure.

State whether the bound covers data fragments only or every fragment, including parity. Counted helpers are not necessarily distinct physical devices, and a helper count alone does not specify bytes transferred or repair latency.

Relations

related

locally-repairable-code, repair-read-amplification, erasure-coding

Citations

1. Ceph: Locally Repairable Erasure Code Plugin (development documentation; parameter names are implementation-specific). (accessed 2026-10-11)
2. Local repair is not whole-node repair (accessed 2026-10-11)

JSON: /data/terms/repair-locality.json