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Include CPU/memory requirements for Rancher before v2.4

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Catherine Luse
2020-03-30 13:33:05 -07:00
parent 7575bfeb77
commit b904035ec4
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content/rancher/v2.x/en/installation/requirements/_index.md
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@@ -13,6 +13,7 @@ Make sure the node(s) for the Rancher server fulfill the following requirements:
- [Operating Systems and Docker Requirements](#operating-systems-and-docker-requirements)
- [Hardware Requirements](#hardware-requirements)
- [CPU and Memory](#cpu-and-memory)
- [CPU and Memory for Rancher prior to v2.4.0](#cpu-and-memory-for-rancher-prior-to-v2-4-0)
- [Disks](#disks)
- [Networking Requirements](#networking-requirements)
- [Node IP Addresses](#node-ip-addresses)
@@ -63,6 +64,8 @@ Hardware requirements scale based on the size of your Rancher deployment. Provis
These requirements apply to [installing Rancher on a Kubernetes cluster.]({{<baseurl>}}/rancher/v2.x/en/installation/k8s-install/)
Performance increased in Rancher v2.4.0. For the requirements of Rancher prior to v2.4.0, refer to [this section.](#cpu-and-memory-for-rancher-prior-to-v2-4-0)
| Deployment Size | Clusters | Nodes | vCPUs | RAM |
| --------------- | --------- | ---------- | -------| ------- |
| Small | Up to 150 | Up to 1500 | 2 | 8 GB |
@@ -102,6 +105,20 @@ These requirements apply to [single node]({{<baseurl>}}/rancher/v2.x/en/installa
{{% /tab %}}
{{% /tabs %}}
### CPU and Memory for Rancher prior to v2.4.0
{{% accordion label="Click to expand" %}}
These requirements apply to installing Rancher on a Kubernetes cluster prior to Rancher v2.4.0:
| Deployment Size | Clusters | Nodes | vCPUs | RAM |
| --------------- | --------- | ---------- | ----------------------------------------------- | ----------------------------------------------- |
| Small | Up to 5 | Up to 50 | 2 | 8 GB |
| Medium | Up to 15 | Up to 200 | 4 | 16 GB |
| Large | Up to 50 | Up to 500 | 8 | 32 GB |
| X-Large | Up to 100 | Up to 1000 | 32 | 128 GB |
| XX-Large | 100+ | 1000+ | [Contact Rancher](https://rancher.com/contact/) | [Contact Rancher](https://rancher.com/contact/) |
{{% /accordion %}}
### Disks
Rancher performance depends on etcd in the cluster performance. To ensure optimal speed, we recommend always using SSD disks to back your Rancher management Kubernetes cluster. On cloud providers, you will also want to use the minimum size that allows the maximum IOPS. In larger clusters, consider using dedicated storage devices for etcd data and wal directories.