The MSGTEXT Cluster

The MSGTEXT cluster, pointed to by the FUSMSG DD card in the TSO JCL, contains information about online messages that are displayed. This file is used by the Platform Server ISPF "Online Message Inquiry" function.

If you want to start with a new MSGTEXT cluster or you are running a version earlier than 6.2, you must run the DEFMSGT job in the platform server JCL data set to create a new MSGTEXT cluster as described in Defining the MSGTEXT Cluster.