What happens when a PV is full?

[ncecsc]

I'm setting up a bare-metal Kubernetes cluster running Wazuh (and Longhorn as the CSI), and I'm trying to understand how Wazuh/Kubernetes handles a full Persistent Volume.

1. Are there error messages produced somewhere to inform the administrator when the pod is out of storage? If so, where would these messages go?

2. Can Wazuh/Kubernetes be configured to automatically expand or generate a new PVC when it's previously bound PV fills up? How would I implement this?

Sorry if these are newbie questions, I'm new to Kubernetes.
Thanks in advance!