Assessment
Leave the Paris data centre. Start with 64 servers.
Current state, target state, the cost comparison, the risks and the next steps.
Current state
From 412 servers to a first wave of 64
Paris data centre.
- Inventory 412 Every server in the CMDB export
- In use 318 −94 idle for 90 days: decommission
- Supported OS 241 −77 on end-of-life systems: upgrade first
- First wave 64 Stateless tiers with a named owner
Source: CMDB export and 90-day utilisation report
Current cost
Hardware and licences are two thirds of the bill
Annual run cost of the data centre.
- Hardware and support410 k€39%
- Licences290 k€28%
- Facilities and power180 k€17%
- Operations staff120 k€11%
- Network50 k€4.8%
| Hardware and support | 410 k€ | 39% |
|---|---|---|
| Licences | 290 k€ | 28% |
| Facilities and power | 180 k€ | 17% |
| Operations staff | 120 k€ | 11% |
| Network | 50 k€ | 4.8% |
Source: finance cost centre 4410, FY2026
Cost by workload
Three workloads hold 90% of the spend
Monthly cost in k€.
| Workload | Compute | Storage | Network | Licences |
|---|---|---|---|---|
| Customer portal | 18.4 | 3.1 | 1.2 | 4 |
| Data platform | 12.9 | 9.6 | 0.8 | 6.5 |
| Integration hub | 7.2 | 0.9 | 2.4 | 1.5 |
| Internal tools | 2.8 | 0.6 | 0.2 | 0 |
| Batch jobs | 2.1 | 1.4 | 0.1 | 0 |
| Total | 43.4 | 15.6 | 4.7 | 12 |
Source: cost allocation model v3
Target state
Managed services cut the run cost by 35%
Monthly run cost in k€, after wave 3.
Today86 k€
Target56 k€
- Compute42 → 24
- Databases18 → 15
- Storage14 → 11
- Operations12 → 6
| Today | Target | |
|---|---|---|
| Compute | 42 k€ | 24 k€ |
| Databases | 18 k€ | 15 k€ |
| Storage | 14 k€ | 11 k€ |
| Operations | 12 k€ | 6 k€ |
| Total | 86 k€ | 56 k€ |
Source: cloud pricing calculator, list prices
Risks
Four risks, one needs a decision today
Reviewed with service owners.
| Risk | Impact | Likelihood | Owner | Mitigation |
|---|---|---|---|---|
| Data loss during the database cut-over | Critical | Low | DBA team | Rehearse twice; keep the source read-only for 48 h. |
| Licence costs double on the new platform | High | Medium | Procurement | Negotiate before the pilot ends. |
| Team lacks cloud operations experience | Medium | High | Platform lead | Pair with the vendor for the first three waves. |
| Data centre contract renews in June | High | Low | Programme lead | Give notice now for a 12-month exit. |
Next steps
Three waves, out by next autumn
Plan for approval.
Oct
Landing zone
Network, identity and guardrails in place.
Nov
Wave 1
64 stateless servers.
Feb
Wave 2
Databases and the data platform.
May
Wave 3
Integration hub and batch jobs.
Sep
Exit
Hardware returned and contract closed.
Decisions
Three decisions for this committee
Needed to start wave 1 in November.
| Done | Owner | Due | |
|---|---|---|---|
| Approve the wave 1 scope of 64 servers | Steering committee | Today | |
| Give notice on the data centre contract | Procurement | 31 Oct | |
| Fund the landing zone and vendor pairing | Finance | 31 Oct |
Sources
- 02From 412 servers to a first wave of 64CMDB export, 1 September
- Utilisation report, 90 days
- 03Hardware and licences are two thirds of the billFinance cost centre 4410, FY2026
- 04Three workloads hold 90% of the spendCost allocation model v3
- 05Managed services cut the run cost by 35%Cloud pricing calculator