Restore a verified backup into a new database generation
The current procedure restores directly over the active database and leaves no usable environment if it fails halfway.
- Focused work estimate
- 4h + prerequisites
- Priority in the scenario
- Medium
- Engineering practice
- Recovery isolation · Database restore
Estimated field mix
- Database engineering70%
- Site reliability30%
Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.
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Project context
A fictional case-management team has nightly backup files but has never tested application behavior after restore. Missing roles and external artifact references may make a successful database restore unusable.
Setup prerequisites
- Create a disposable synthetic database and local backup directory.
- Never connect these drills to production or overwrite a shared database.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
Acceptance criteria
- Create and restore into a distinct verified disposable generation.
- Keep the prior target untouched until checks complete.
- Record each restore stage and failure without exposing data contents.
Implementation constraints
- Use bounded local synthetic backups only.
Verification to include
- Restore a valid backup and inspect the new generation.
- Fail mid-restore and verify the previous synthetic application still reads its original database.
Deliverables
- Generation-based restore script
Rollout and recovery
Use a new target for every drill; remove only verified owned failed generations after review.
Value of the work
For the engineer: Practice restore verification, provenance and operational recovery.
For the team: Review evidence that recovery produces coherent usable state under declared limits.
Evidence boundaries
Outcome Evidence: Tests, patches, and runbooks are requested deliverables. They become Outcome Evidence only through a qualified Mission and immutable Evidence IDs.
Ownership Evidence: Independent adaptation must be observed under a declared verification policy and cite immutable Evidence IDs. Completing a planning ticket establishes no Ownership Evidence.