Research Article
A Two-Phase Cloud Resource Provisioning Algorithm for Cost Optimization
Table 2
The configuration and the pricing models of each VM type.
| | VM type | Resource configuration | Processing capacity (requests/s) | Reserved instance (1 year, partial upfront) | On-demand instance usage fee (per hour) | | Upfront payment | Usage fee (per hour) |
| | Small | 1 vCPU, 1.7GiB RAM, 160 GB disk | 20 | $123 | $0.010 | $0.044 |
| | Medium | 1 vCPU, 3.75GiB RAM, 410 GB disk | 50 | $247 | $0.020 | $0.087 |
| | Large | 2 vCPU, 7.5GiB RAM, 840 GB disk | 110 | $493 | $0.042 | $0.175 |
| | Extralarge | 4 vCPU, 15GiB RAM, 1680 GB disk | 225 | $987 | $0.083 | $0.35 |
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