Red Hat OpenShift cluster size
When you specify the installation parameters for IBM® Maximo® Application Suite, if you want to create a new Red Hat® OpenShift® cluster, you must choose the size of the cluster that you want to create. Choose a cluster size that is appropriate for the scale of your Suite installation. Consider the Suite applications that you might want to deploy after the installation is complete.
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 | Virtual machine size | CPUs per node | Total CPUs | Memory per node (GB) | Total memory (GB) | VM OS disk per node (GB) | Disk storage per node (GB) |
|---|---|---|---|---|---|---|---|---|---|
| Small | Master | 3 | Standard_D8s_v3 | 8 | 24 | 32 | 96 | 256 | 0 |
| Worker | 3 | Standard_D16s_v3 | 16 | 48 | 64 | 192 | 256 | 100 (Approx.) | |
| Boot node | 1 | Standard_D2s_v3 | 2 | 2 | 8 | 8 | 64 | 64 | |
| Medium | Master | 3 | Standard_D8s_v3 | 8 | 24 | 32 | 96 | 256 | 0 |
| Worker | 5 | Standard_D16s_v3 | 16 | 80 | 64 | 320 | 256 | 100 (Approx.) | |
| Boot node | 1 | Standard_D2s_v3 | 2 | 2 | 8 | 8 | 64 | 64 | |
| Large | Master | 5 | Standard_D8s_v3 | 8 | 40 | 32 | 160 | 256 | 0 |
| Worker | 7 | Standard_D16s_v3 | 16 | 112 | 64 | 448 | 256 | 100 (Approx.) | |
| Boot node | 1 | Standard_D2s_v3 | 2 | 2 | 8 | 8 | 64 | 64 |
The boot node 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.
For more information, see Requirements and capacity planning.