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Created May 28, 2026 21:40
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HA/DR Test Scenario Milestone Update — Proposal

HA/DR Test Scenario Milestone Update — Proposal

Background

We've been tracking 12 test scenarios against the 2026-05-29 milestone. After auditing all SC-* grandchildren under ANSTRAT-1991, we found scenarios that should be tracked but weren't included in our milestone reporting.

What changed

1. 2026-05-29 milestone: 12 → 13 scenarios

Added AAP-70819 (SC-013 — Managed DB Failover / RDS / Azure DB), which was already Closed but wasn't being counted. This corrects our completion metric.

  • Current score: 11/13 (85%)
  • 2 remaining items still in Backlog:
    • AAP-70810 — SC-020: In-Flight Jobs During Full Region Failure
    • AAP-70811 — SC-023: Execution Nodes Continue During Control Plane Gap
  • Both are DR/region-failure scenarios that share the same test run (make disaster-recovery) and are blocked on adding a receptor connectivity metric to the SLO probe.

2. New 2026-06-05 milestone: 5 scenarios (Phase 1 DB/Backup)

These are Phase 1 grandchildren that were not previously tracked in any milestone. All are currently in Backlog:

Key Scenario
AAP-70820 SC-014 — Measure DB Replica Lag for all Failover DB scenarios
AAP-70821 SC-034 — Continuous WAL Archiving Robustness
AAP-70822 SC-035 — Scheduled Full Database Backup
AAP-70823 SC-036 — Point-in-Time Recovery from WAL Archive
AAP-70824 SC-037 — DR-Region-Independent Backup Storage

Not included

15 additional SC-* scenarios exist under Phase 2 epics (elastic execution, multi-AZ, remote execution, cross-region DR, DR runbook). All are in "New" status and are out of scope for these near-term milestones.

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