Examples
Examples
Try the starting example
- Expected restore partitions: ID, row count, supplied digest label
- P1,100,abc P2,50,def
- Observed partitions: ID, row count, supplied digest label; or none
- P1,100,abc P2,40,bad Extra,5,xyz
- Observed recovery duration (minutes)
- 180
- Supplied recovery-time target (minutes)
- 120
- Observed recovered-data age (minutes)
- 30
- Supplied recovery-point target (minutes)
- 15
- Expected partitions missing entirely
- None
- Expected partitions with row-count or digest-label mismatch
- P2
- Unexpected restored partition IDs
- Extra
- Expected rows in matching-digest/count partitions (%)
- 66.666667
- Observed duration less supplied time target (minutes)
- 60
- Recovered-data age less supplied point target (minutes)
- 15
Try another scenario
- Expected restore partitions: ID, row count, supplied digest label
- P1,100,abc P2,50,def
- Observed partitions: ID, row count, supplied digest label; or none
- P1,100,abc P2,50,def Extra,5,xyz
- Observed recovery duration (minutes)
- 180
- Supplied recovery-time target (minutes)
- 120
- Observed recovered-data age (minutes)
- 30
- Supplied recovery-point target (minutes)
- 15
- Expected partitions missing entirely
- None
- Expected partitions with row-count or digest-label mismatch
- None
- Unexpected restored partition IDs
- Extra
- Expected rows in matching-digest/count partitions (%)
- 100
- Observed duration less supplied time target (minutes)
- 60
- Recovered-data age less supplied point target (minutes)
- 15
Calculation method
Calculation method
Expected partitions missing entirely
Expected IDs absent from observed data.
Expected partitions with row-count or digest-label mismatch
For present expected IDs compare both row counts and exact digest labels.
Unexpected restored partition IDs
Observed IDs not in the expected inventory.
Expected rows in matching-digest/count partitions (%)
Count all rows only in fully matching expected partitions; divide by all expected rows.
Observed duration less supplied time target (minutes)
Observed duration−RTO; positive is over the entered target.
Recovered-data age less supplied point target (minutes)
Observed data age−RPO; positive is over the entered target.
Symbols and units
- a
- Expected restore partitions: ID, row count, supplied digest label
- b
- Observed partitions: ID, row count, supplied digest label; or none
- c
- Observed recovery duration (minutes)
- d
- Supplied recovery-time target (minutes)
- e
- Observed recovered-data age (minutes)
- f
- Supplied recovery-point target (minutes)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- A supplied restore-evidence reconciliation. Digest labels are compared literally; no cryptographic hash is computed and no backup is restored. Matching these records alone is not a complete application recovery test.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.