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Resource usage on the Nirin cloud is charged in SUs. Resource usage is charged for on a unit per hour basis, with the units as specified in the following table:
| Resource | Description | Unit |
|---|---|---|
| vCPUs | Virtual CPUs allocated to instances | vCPU |
| Memory | Virtual RAM allocated to instances | GB |
| Volume Storage | Persistent volume storage | 100GB |
The mapping between resource usage and SUs is specified below.
Note: NCI does not currently charge for public IP addresses (floating IPs), however there is a limited number available and we strongly encourage users to minimise the number of public addresses they use.
Compute Resources - Flavours
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The charging rate for common Nirin flavours are noted below. For other flavour charge rates please contact the NCI Helpdesk for further information.
Public Flavours
| Flavour Name | vCPUs | Mem (GB) | Root disk (GB) | Service Unit (SU) / hr |
|---|---|---|---|---|
| c3.1c0.5m1d | 1 | .5 | 1 | 1.25 |
| c3.1c1m5d | 1 | 1 | 5 | 1.25 |
| c3.1c2m10d | 1 | 2 | 10 | 1.25 |
| c3.2c4m10d | 2 | 4 | 10 | 2.50 |
| c3.4c8m10d | 4 | 8 | 10 | 5.00 |
| c3.8c16m10d | 8 | 16 | 10 | 10.0 |
Selected Commonly Used Private Flavours
Charging for private flavours is available on request.
| Flavour Name | vCPUs | Mem (GB) | Root Disk (GB) | Ephemeral Disk (GB) |
|---|---|---|---|---|
| c3.16c32m10d | 16 | 32 | 10 | 0 |
c3pl.1c2m10d | 1 | 2 | 10 | 0 |
c3pl.2c4m20d | 2 | 4 | 20 | 0 |
c3pl.8c16m80d | 8 | 16 | 10 | 70 |
| c3pl.8c28m20d | 8 | 28 | 20 | 0 |
| c3pl.16c48m200d | 16 | 48 | 20 | 180 |
Note: NCI charges for instances in ‘shutdown’ state as shutdown instances still consume resources on the hypervisor. If you do not wish to be charged for shutdown instances, please terminate them. Alternatively instances can be shelved and offloaded - this will effectively snapshot the instance and move it to offline storage, from which it can be recovered later.
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Volume storage tiers and the associated charge rate are documented below.
| Tier | Description | Cinder Volume Type | Charge Rate (SU per 100GB per hour) |
|---|---|---|---|
| General | General use volume storage - suitable for most use cases | Nirin2_General | 0.6 |
| Transaction | Transaction oriented storage, suitable for IOP-oriented use cases like databases | Nirin2_Transaction | 1.8 |
| Throughput | Highly optimised storage suitable for high throughput relatively small volume use cases (Note this tier can only support small volume sizes) | Nirin2_Throughput | 2.4 |
| Old default (obsolete) | Old general use storage - now deprecated. New volumes should always use one of the Nirin2 volume types. | __DEFAULT__ | 0.75 |
The General tier is available to all projects who request volume storage. Higher tiers may be requested specially - if you have need of them please contact the NCI Helpdesk with details of your use case.
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