Historic charging models
Compute time charges
| Period | Compute Charge £/h |
|---|---|
| 2014-07/2017 | 0.03 |
Account charges
| Period | Low Usage Account Charge £/pa (pro rata) | Normal Account Charge £/pa (pro rata) | Compute Charge £/h |
|---|---|---|---|
| 2014-2017 | 100 | 1000 | 0.03 |
| 08/2017-07/2025 | 210 | 1500 | N/A |
| 08/2025-07/2026 | 200 | 860 | N/A |
Storage charges
Disk charges £ per TB per year
| Period | Allocated Unused | Working Space (Scratch) | Group Storage |
|---|---|---|---|
| 2014-2017 | 240 | 480 | 1200 |
| 08/2017-07/2022 | N/A | 0 | 50 |
| 08/2022-07/2023 | N/A | 0 | 57 |
| 08/2023-07/2024 | N/A | 0 | 39 |
| 08/2024-07/2025 | N/A | 0 | 36 |
| 08/2025-07/2026 | N/A | 0 | 178 |
Tape archive
| Period | Per PI group access charge £ |
|---|---|
| 2025/2026 | per PI group access charge £842 |
Details
Account charge - 2017-2025
All accounts will be subject to a service provision charge based on the number of accounts active in the previous year and the budgeted costs for running the computing facilities:
- (Intended) Hardware Purchases - four year amortisation period
- Staff costs
- Third-party support costs (not disk/cluster related)
- Third-party Service rental costs
- Software licensing (not disk/cluster related)
Where an account is deemed to be a low usage account (less than ten gigabytes of disk allocation, less than one hour of compute usage) this fee will be capped at £100. The charge is pro rata, for example an account active for 6 months would pay 50% of the charge (i.e. £500 or £50 depending on usage).
Disk usage rental fee - 2017-2025
All accounts will be subject to a disk usage rental fee to cover the costs of providing data storage:
- (Intended) Hardware Purchases - four year amortisation period
- Tape purchase
- Software licensing
- Third-party support costs
This charge comprises of the following:
- A low charge for disk space of any type allocated but unused
- A medium charge for disk space used but unprotected by our data backup systems (scratch folder)
- A higher charge for disk space used in one of the tape backup protected areas (home folders and /vols/Data)
Cluster usage charges - pre-2017
Where an account uses the compute cluster a charge will be levied on the cpu time used in the charging period for standard jobs, and on the wall time for interactive tasks.