The Data Base Space Trigger was going to automatically expand the data base. Expanding the database would cause the size of the database to exceed 500GB, which is beyond the server maximum limit for the database.
Server operation continues, but the database is not automatically expanded. No additional database expansion will occur as a result of the recovery log space trigger until the database size is less than the maximum size and the trigger attributes allow it to be expanded to a size less than the maxium.
None. You may review the space trigger settings and use the UPDATE SPACETRIGGER DB command to adjust space trigger values. You may also reduce the database size, if possible.