The server attempted to enable Append-Only mode on the tape drive for data overwrite protection. However, the tape drive does not support Append-Only mode.
The server will not enable append-only mode on the tape drive for data overwrite protection.
No action is required. You can set the server option CHECKTAPEPOS to No or TSMonly if you do not wish the server to use append-only mode for data overwrite protection on the tape drives that support append-only mode.