Coexistence considerations for DEDBs with more than 2048 areas
IMS 15 Fast Path DEDBs with more than 2048 areas are supported only in IMS 15.1 and later. You must install APAR PH12671 and enable the enhancement on all the IMSs that share a DEDB with more than 2048 areas. If an IMS does not have this APAR installed and attempts to open a DEDB with more than 2048 areas, opening the database will fail.
For IMS 15.1 and later, the maximum number of areas for a DEDB is 9999.