Compact cloud
The following table summarizes resource requirements of all StackLight LMA node roles for compact clouds (up to 50 compute nodes and Ceph OSD nodes, if any).
| Virtual server roles | # of instances | CPU vCores per instance | Memory (GB) per instance | Disk space (GB) per instance | Disk type |
|---|---|---|---|---|---|
mon |
3 | 4 | 16 | 500 [0] | SSD |
mtr |
3 | 4 | 32 | 1000 [0] | SSD |
log |
3 | 4 | 32 | 2000 [1] | SSD |
Cloud Provider Infrastructure (CPI)
The following table summarizes resource requirements of all StackLight LMA node roles for CPI clouds (50 - 150 compute nodes and Ceph OSD nodes, if any).
| Virtual server roles | # of instances | CPU vCores per instance | Memory (GB) per instance | Disk space (GB) per instance | Disk type |
|---|---|---|---|---|---|
mon |
3 | 8 | 32 | 500 [0] | SSD |
mtr |
3 | 8 | 32 | 2000 [0] | SSD |
log |
3 | 8 | 48 | 3000 [1] | SSD |
Large cloud
The following table summarizes resource requirements of all StackLight LMA node roles for large clouds (200 - 500 compute nodes and Ceph OSD nodes, if any).
| Virtual server roles | # of instances | CPU vCores per instance | Memory (GB) per instance | Disk space (GB) per instance | Disk type |
|---|---|---|---|---|---|
mon |
3 | 24 | 256 | 1000 [0] | SSD |
mtr |
3 | 16 | 196 | 3000 [0] | SSD |
log |
3 | 16 | 64 [2] | 5000 [1] | SSD |
| [0] | (1, 2, 3, 4, 5, 6) The required disk space per instance depends on the Prometheus retention
policy, which by default is 5 days for mon nodes and 180 days for
mtr nodes. |
| [1] | (1, 2, 3) The required disk space per instance depends on the Elasticsearch retention policy, which is 31 days by default. |
| [2] | The Elasticsearch heap size must not exceed 32 GB. For details, see Limiting memory usage. To limit the heap size, see MCP Operations Guide: Configure Elasticsearch. |