System requirements for 300 - 500 users
The requirements are presented in the table below:
Application server
| Environment | Virtual infrastructure |
| CPU (number of virtual cores, frequency) | 2 –› 2,6 GHz (Haswell gen. or newer) |
| RAM | 20 GB |
| Disk space (capacity, IOPS, latency) | Operating system - 60 GB, 100 IOPS, <10 ms Application - 20 GB, 100 IOPS, <10 ms |
| Ratio of virtual and physical cores | No more than 2 virtual cores per 1 physical core |
| Network interface (number, speed) | 1 –›= 1 GbE |
| Number of servers | 2 |
| Fault tolerance scheme | N+1 |
Database server
| Environment | Virtual infrastructure (physical servers preferable) |
| CPU (number of virtual cores, frequency) | 4 –› 3 GHz (Haswell gen. or newer) |
| RAM | 34 GB |
| Disk space (capacity, IOPS, latency) | Operating system - 80 GB, 100 IOPS, <8 ms Database - 150 GB, 500 IOPS, <8 ms Tempdb - 15 GB, 500 IOPS, <8 ms Transaction logs (full recovery model) - 60 GB, 500 IOPS, <8 ms |
| Ratio of virtual and physical cores | No more than 1 virtual core per 1 physical core |
| Network interface (number, speed) | 2 –›= 1 GbE |
| Number of servers | 2 |
| Fault tolerance scheme | N+1 |
Caching server (user sessions)
| Environment | Virtual infrastructure |
| CPU (number of virtual cores, frequency) | 1 –› 2,4 GHz |
| RAM | 4 GB |
| Disk space (capacity, IOPS, latency) | 20 GB, 30 IOPS, < 20 ms |
| Ratio of virtual and physical cores | No more than 2 virtual cores per 1 physical core |
| Network interface (number, speed) | 1 –›= 0.1 GbE |
| Number of servers | 3 |
| Fault tolerance scheme | N+1 |
Load balancer server
| Environment | Virtual infrastructure |
| CPU (number of virtual cores, frequency) | 2 –› 2,6 GHz |
| RAM | 10 GB |
| Disk space (capacity, IOPS, latency) | 20 GB, 20 IOPS, < 10 ms |
| Ratio of virtual and physical cores | No more than 2 virtual cores per 1 physical core |
| Network interface (number, speed) | 2 –›= 1 GbE |
| Number of servers | 2 |
| Fault tolerance scheme | N+1 |
Version control system server
| Environment | Virtual infrastructure |
| CPU (number of virtual cores, frequency) | 1 –› 2,60 GHz |
| RAM | 8 GB |
| Disk space (capacity, IOPS, latency) | 100 GB, 20 IOPS, < 20 ms |
| Ratio of virtual and physical cores | No more than 2 virtual cores per 1 physical core |
| Network interface (number, speed) | 1 –›= 0.1 GbE |
| Fault tolerance scheme | Not applicable |
