The --volume-percentage flag in must-gather is intended to prevent excessive disk usage by stopping the collection process if the volume usage exceeds a configured percentage. However, when the EmptyDir volume backing must-gather does not have a sizeLimit set, the volume effectively uses the entire node disk capacity.In this scenario, the --volume-percentage check does not correctly limit or prevent must-gather from filling the node disk, because it calculates usage against the node’s full disk space rather than a defined quota or limit. This can lead to the disk being filled up by the collection process, potentially impacting system stability and other workloads.