If a storage expansion operation fails at any step, the process continues from the step at which it failed when a user re-runs the same operation.
For example, if a user runs # tdc-expand-storage 2 and the operation fails at step 4, the process continues from step 4 when the user re-runs # tdc-expand-storage 2.
To troubleshoot storage expansion issues, access the /var/log/ExpandStorage/tdc-expand-storage.log file.