Previous Topic: Identify CA-L-Serv to CA TPXNext Topic: Specify the ICSN


Specify the DDname Prefix

You must specify a DD statement in the startup procedure to specify the CA-L-Serv ddname prefix. The prefix is a four-letter code. The VSAM files are defined to CA-L-Serv with the same prefix. CA-L-Serv allows CA TPX to access files with the matching prefix. Different copies of CA TPX can use different prefixes, which allows CA-L-Serv to control the sharing of different file sets concurrently.

Place the following statement in the startup procedure to define the prefix:

//DDN$prefix DD DUMMY

By specifying the same prefix in the startup procedure of another CA TPX, both copies will share the same VSAM files.