ORIGINAL RESOURCE · V1.0
Legacy decommissioning checklist
Decommissioning is not simply turning off a server. It closes dependencies, preserves evidence and keeps a restoration path during the approved window.
Reviewed .
1. Before the decision
Nothing advances without equivalence and accountable owners.
- Approved Equivalence Contract
- Zero blockers or signed exceptions
- Dependencies and consumers inventoried
- Communication and support plan
2. Cutover window
Execution needs command, observation and a stop path.
- Named go/no-go
- Verified backup and snapshot
- Stop control and rollback available
- Live metrics and accountable responders
3. After cutover
Preserve response capability during the agreed window.
- Post-cutover reconciliation
- Regression monitoring
- Archive retention and access
- Deadline and condition for secure destruction
4. Closure
Technical and contractual retirement must close the same story.
- Licenses and contracts terminated
- Access revoked
- CMDB/inventory updated
- Evidence Pack and final decision retained
CHECKLIST · Sequence and obligations vary by criticality, sector, contract and privacy role. Validate with Technology, Security, Legal, DPO and the process owner.