Below is a list of parameters that can only be configured during bootstrap time.
| Immutable Parameters |
|---|
| DISK_SIZE |
| STORAGE_CLASS |
| PERSISTENT_STORAGE |
These storage-related parameters cannot be changed after initial deployment. Repeat: using parameters to resize disk, change storage class, or switch between persistent/ephemeral storage is not supported.
Changing the above parameters will trigger a not-allowed plan. Which basically skips updating any resources.
This is to avoid any update done by mistake or human error.
Resizing the disk depends on the storage class of your Kubernetes cluster.
To resize the disk being used by a broker, users can edit the pvc and expand the disk.
You can read more about it in resizing the PVC post.