At the other end of the scale, IBM also has a new IMS release, IMS/ESA v3.1, although in fact it is the first to be styled IMS/ESA. It is a pair of programs to provide a simplified packaging design and enhanced functions in performance, virtual storage constraint relief, and operational flexibility – for MVS/ESA users only. The DL/I Virtual Storage Constraint Relief is of particular value to customers with large database-data communications systems, and managed availability for users with substantial virtual storage constraints is planned to begin a year from now, although planned availability is not until March 1990. It costs $142,800 to $217,000 or $2,975 to $4,025 a month for the database manager, and $169,200 to $257,850 or $3,525 to $4,775 a month for the Transaction Manager.