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Add db sizing guide

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galal-hussein
2020-03-24 21:47:10 +02:00
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content/k3s/latest/en/installation/installation-requirements/_index.md
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@@ -67,3 +67,16 @@ The cluster performance depends on database performance. To ensure optimal speed
### Network
You should consider increasing the subnet size for the cluster CIDR so that you don't run out of IPs for the pods. You can do that by passing the `--cluster-cidr` option to K3s server upon starting.
### Database
K3s supports different databases including MySQL, PostgreSQL, MariaDB, and etcd, the following is a sizing guide for the database resources you need to run large clusters:
| Deployment Size | Nodes | VCPUS | RAM |
|:---------------:|:---------:|:-----:|:-----:|
| Small | Up to 10 | 1 | 2 GB |
| Medium | Up to 100 | 2 | 8 GB |
| Large | Up to 250 | 4 | 16 GB |
| X-Large | Up to 500 | 8 | 32 GB |
| XX-Large | 500+ | 16 | 64 GB |