Runbook	Use it for
Site replication operations	Health fields, pending operations, outage recovery, re-pair admission, IAM/SSE boundaries, and upgrades.
Replication target check	Validating an S3 destination and version fidelity before enabling replication.
Replication object size limits	Multipart routing, large-object limits, and retry characteristics.
Replication outbound transport	Integrity headers, generic target behavior, and transport knobs.

For persisted administrator bucket tasks and bucket recreation, see Bucket heal recovery.

For disk replacement across VM restarts and schema 5/6 maintenance migration, see Replacement generation recovery.

For historical GET timeouts during PUT or Heal, see Object lock contention diagnostics.

Other runbooks remain grouped by filename in operations/; architecture pages link to the relevant runbook where a cross-boundary procedure is required.

For storage dashboards, see Storage metrics and observer selection: drive ownership, snapshot freshness, counter queries, and rolling upgrades.

For optional shard commitments, see Independent shard integrity rollout: activation, legacy repair results, multipart mode changes, and rollback limits.