To troubleshoot, see the error messages displayed on the secondary storage system console. You can also see one of two log files, the /etc/log/nbu_snapvault log file or the /etc/log/snapmirror log file.
Note: In takeover mode, all actions performed on behalf of the local node are written to the local node's /etc/log/xxx files. The actions that are performed on behalf of the partner node are written to the partner node's/etc/log/xxx files.