Failed to Run the Command for Unmounting Data Drives from a Cluster Node

Symptom

A data drive fails to be unmounted from a cluster node.

Handling Procedure

1. Find the PID of the unmount task and stop the process.

   1	lsof umount: address

2. Unmount the data drive again.

   1	/usr/local/diskmgt/script/uninstall.sh -u