DFS0773I DATA BASE - dddddddd STOPPED.
Explanation
A non-block level shared database was being extended by the failing active IMS system during takeover. The variable dddddddd identifies the database.
The IMS alternate system taking over the workload of a failing IMS active system does not know how or where the failing or degraded active is changing the end-of-data. For this reason, IMS cannot use this database safely until the failing active terminates.
System action
This database has been stopped until the failing active terminates. You cannot enter a /START DB or UPDATE DB START(ACCESS) command until the new active IMS system knows that I/O Prevention is complete.
Programmer response
When the failing active IMS terminates completely, you can safely start the database.