Red Hat OpenShift cluster size
When you specify the IBM® Maximo® Application Suite installation parameters, if you want to create a new Red Hat® OpenShift® cluster, you must choose the size of the cluster that you want to create.
Cluster size
Choose a cluster size that is appropriate for the scale of your Maximo Application Suite
installation. Consider the Maximo Application Suite applications that you might want to deploy after
the installation is complete.
Tip: You can also resize your Red Hat OpenShift cluster after it is provisioned.
For more information, see Requirements and capacity planning.
You can choose to create a small, medium, or large cluster. By default, the cluster that you create spans multiple availability zones. For the node, CPU, and memory dimensions for each cluster size, see the following table:
| Cluster size | Node type | Number of nodes | EC2 instance size | CPUs per node | Total CPUs | Memory per node (GB) | Total memory (GB) |
|---|---|---|---|---|---|---|---|
| Small | Primary | 3 | m5.2xlarge | 8 | 24 | 32 | 96 |
| Worker | 3 | m5.4xlarge | 16 | 48 | 64 | 192 | |
| Bootnode and Bastion host | 1 | t3.small | 2 | 4 | 2 | 2 | |
| Infra | 3 | m5.4xlarge | 16 | 48 | 64 | 192 | |
| Medium | Primary | 3 | m5.2xlarge | 8 | 24 | 32 | 96 |
| Worker | 5 | m5.4xlarge | 16 | 80 | 64 | 320 | |
| Bootnode and Bastion host | 1 | t3.small | 2 | 4 | 2 | 2 | |
| Infra | 3 | m5.4xlarge | 16 | 48 | 64 | 192 | |
| Large | Primary | 5 | m5.2xlarge | 8 | 40 | 32 | 160 |
| Worker | 7 | m5.4xlarge | 16 | 112 | 64 | 448 | |
| Bootnode and Bastion host | 1 | t3.small | 2 | 4 | 2 | 2 | |
| Infra | 3 | m5.4xlarge | 16 | 48 | 64 | 192 |
Note: The Bootnode is used only during the installation and shutdown after
the installation is complete. It is a workstation from which the Red Hat OpenShift
cluster deployment, Maximo Application Suite is deployed. Hence, it can be used later to access the
deployment files, configurations, logs, or to run the ad hoc actions on the cluster as
needed.