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The DVD for OpenShift Container Platform 4.14 requires a minimum of four servers for a three-node cluster, with each node running as both a control-plane node and a compute node. A three-node cluster can be expanded to a standard cluster as needed. You can also expand the standard cluster with more compute nodes at any time.
For the PowerEdge server baseline configurations that the Dell OpenShift team used in validating the cluster design, see Appendix A.
The following table provides additional cluster configuration information:
Quantity | Description | Dell Technologies reference |
1 | Rack enclosure: APC AR3300 NetShelter SZ 42U | |
1 | Management switch: Dell Networking S3148-ON | |
2 | Data switch:
or
| |
7-210 |
or
| or
|
2-4 | Power distribution unit: APC metered rack PDU 17.2 kW | APC Metered Rack PDU AP8867 - 0U - 208V 3Phase IEC 309 60A 3P+PE Input / (30) C13 Output |
Note: Rack enclosures and power distribution units are site-specific. Review the physical dimensions and power requirements in a site survey.
Cloud service providers typically require the ability to monitor and report on system use. OpenShift Container Platform 4.14 includes Prometheus system monitoring, which provides the capability for extensive data logging. For more information about cluster resource consumption, see the following Red Hat documentation:
The cluster monitoring operator controls the monitoring components that are deployed, and the Prometheus operator controls Prometheus and Alert Manager instances. The platform monitors the following stack components: