Joined: 22 Apr 2006 Posts: 6258 Location: Mumbai, India
This appears to be very straightforward. The error received just means that the IMS database is already open. This is either a DBCTL or DBDC environment and the database was created so that the online system holds it exclusively. It is not always possible to use IMS-DLI while the online system is running – it depends on the site standards and may be this site, they don't have (actually, don’t appear to have) the share options required to make this work. In this case they should use the other variants of the IMS driver – either IMS-DBDC or IMS-DBCTL.
Suggest, you get in contact with your DBA. This issue is kinda out of scope of Forum.