SLO Handoff Between Teams
Service ownership moves; SLOs that do not move with it become orphans. The handoff is mechanical but rarely done.
Why SLOs orphan
Team A owns service X with SLO. Team B inherits service X. SLO stays in A’s alerts; A’s on-call gets paged for B’s service.
The SLO must move; in practice it forgets to.
Four-step handoff
- 1. Document the SLO and its history.
- 2. Update alert routing to new team.
- 3. Update dashboard ownership.
- 4. Joint owners during transition.
Joint-ownership transition
Old team and new team jointly own for one quarter. Old team mentors; new team learns the SLO’s context.
Cleaner than instant handoff; preserves institutional memory.
Quarterly audit
Quarterly: catalog of services and their owning teams; SLO owners verified.
Anything mismatched gets re-handed off explicitly.
Antipatterns
- Silent handoff. Old team continues to own (or nobody does).
- Instant handoff with no joint period. New team flying blind.
- No catalog audit. Mismatches accumulate.
What to do this week
Three moves. (1) Apply the pattern to your most-impactful service. (2) Measure adherence for 30 days. (3) Rewrite the policy or the SLO if the gap is durable.