Analyze unused cluster and node capacity

You can analyze your cluster usage with cost management by examining the unrequested capacity and unused capacity of your cluster.

Before you begin

  • You created a integration on Red Hat Hybrid Cloud Console.
The unrequested capacity identifies how much of the requested resources are being used in the cluster. When this value is high, there are nodes in your cluster that are requesting more resources than it uses. You can find the nodes that are responsible and adjust your requests to make your cluster usage more efficient. However, the usage can exceed the amount requested, so the unused capacity can help you to understand if you should adjust the overall capacity.

About this task

Request
The pod resources requested, which OpenShift reports.
Unrequested capacity
is the requests minus the usage.
Effective usage
The pod resources used or requested each hour, whichever is higher.
Unused capacity
is the capacity minus the effective usage.

Procedure

  1. Log in to the Red Hat Hybrid Cloud Console.
  2. From the Services menu, click Spend Management > Cost Management.
  3. To view unused cluster capacity and unrequested cluster capacity:
    1. In the Global Navigation, click Cost Management > OpenShift.
    2. On the OpenShift details page, in the Group By menu, select Cluster. Filter by Cluster, then select a cluster from the results.
    3. On the Cost overview tab, you can see your unused capacity and unrequested capacity in the CPU tile. If the unrequested capacity is higher than your unused capacity, or the unrequested core-hours are too high as a percentage of capacity, you can search for the nodes in your cluster that are responsible.
  4. To view unused node capacity and unrequested node capacity:
    1. In the Global Navigation, click Cost Management > OpenShift.
    2. On the OpenShift details page, in the Group By menu, select Node. Filter by Node, then select a node from the results.
  5. If the unrequested capacity is higher than your unused capacity, or the unrequested core-hours are too high as a percentage of capacity for your node, you can adjust them in your cloud service provider to optimize your cloud spending.