TPM Cutover & Migration Plan

Free Review to certify

TPM Cutover & Migration Plan

Plan old→new cutover: dual-write, read switch, rollback window, and data verification.

Skills you'll learn

Cutover planning Dual-write & backfill Data verification Rollback window Read-switch Go/No-Go

~130 min · +70 pts

SCENARIO: Migrate CareerAck AI session storage from legacy JSON blobs to structured `ai_sessions` tables without losing student history. Read traffic is live.

Template: /assets/templates/tpm-pack/07-cutover-migration.md
Rubric: /assets/templates/tpm-pack/RUBRIC.md

Must produce:
1) Phased plan: dual-write → backfill → read switch → retire legacy
2) Rollback window and abort criteria
3) Data verification checks (counts, spot samples, checksum strategy)
4) Comms + on-call during cutover
5) Risk list specific to data loss / partial migrate
6) Go/No-Go for read switch

Submit: cutover plan + reflection on the scariest failure mode.

Environment setup (start here)

Plan dual-write → backfill → read switch → retire with 07-cutover-migration.md.

Browser only

Pick your OS and follow from step 1:

Windows macOS

1) Copy 07-cutover-migration.md + RUBRIC.md.
2) Fill phases, rollback/abort, verification checks.
3) Write read-switch Go/No-Go and scariest failure.
4) Submit + reflection.

Same as Windows.

How do I know it worked?

Verification gates exist before read switch; abort owner is named.

Common issues

Skipping backfill verification fails the lab.