DB2 for MVS/ESA is the IBM relational database management system for MVS/XA, and MVS/ESA systems. DB2 for MVS/ESA Version 2 Release 3 was the first release of DB2 for MVS/ESA able to share distributed relational data with other DBMSs supporting DRDA protocols. This chapter describes how DB2 for MVS/ESA provides support for distributed relational database systems. If you are working with DB2 Universal Database for OS/390 do not use this chapter: go instead to Connecting DB2 Universal Database for OS/390 in a DRDA Network.
The primary emphasis of the information in this chapter is on configuring DB2 for MVS/ESA for connectivity:
For information about connecting two DB2 for MVS/ESA systems, or more detailed information describing how to define DRDA connections to DB2 for MVS/ESA, see the discussion of connecting distributed database systems in the IBM Database 2 Administration Guide.
With the AnyNet Feature of VTAM Version 4 Release 2, you can run APPC over a TCP/IP network. The AnyNet Feature consists of AnyNet/MVS, which runs in a host, and AnyNet/2, which runs in a workstation and is downloaded from the host. Any APPC application is accessible to end users in a TCP/IP network without change to the application. Using APPC over TCP/IP, an application program on MVS/ESA can communicate with another APPC application program running with AnyNet APPC over TCP/IP on MVS/ESA, OS/2, AIX/6000, OS/400, or Windows. See VTAM AnyNet Feature for V4R2 Guide to SNA over TCP/IP for more information.