Creating a DB from backup


I am trying to create a DB from a backup file and I receive the following error msg:

INODSF2339 XTS refuses database connection, reason reason_code
Explanation It is not possible to reach the database via XTS.

Action Switch on XTS_TRACE, repeat the function and check the trace file.

The question is how do I turn it on ?

Servline24 Knowledge base article DOCID 212013 should help:|trace&SessionID=252378154