GLESR137E [%d] File copy operation failed and the current filename is not known.
Explanation
The file copy operation for this file failed. The filename is not shown in "task show" output because the name recorded on tape must be different from the current name on disk.
Operator response
Run tape_reconcile task and retry. When it happens again or it happens on 'tape_replace' task, confirm there is no snapshot remained for the filesystem which include this file. Delete the snapshot and retry.