Installing the Online Interfaces › How to Configure the Online Interfaces Without CA CSM › Install the Cross-Memory Services › Step 2: Modify, Assemble, and Link the EC1XMCTR Module › Notes on Cross-Memory Service Parameters

Notes on Cross-Memory Service Parameters

1. DESTID= specifies the optional CICS destination where the message output is to be written.
2. SRVTRAN= specifies the service transaction ID.

   This transaction is required for CICS, but you can use the default service transaction name XMC1.

3. SUBMAX= controls the maximum number of connections that the subtask program can manage.

   The default is 500.

   Each ISPF/XMS, TSO/XMS, CA Roscoe/XMS, or IMS/DC user connects through the XMS subtask, and the value defines the total number of users that can be connected from these interfaces at one time.

4. USERMAX= controls the maximum connections that can be managed by the subtask program.

   The default is 500, which should be enough for most users. Each CICS region can manage this number of sessions. To increase the value, you must restart the CICS or XMS region that owns the subtask.

5. WAITCNT= specifies a value that should remain at the default value at this time.

   Major performance problems occur if you set this to a lower value. Note that this value cannot be set above 255.

   IMSMENU= specifies the IMS/DC conversational menu to transfer to when CA View ends.

6. If IMSMENU= is not specified, the SPA TRAN is set to blank upon termination.
7. IMSSPA= specifies the length of the IMS/DC spa to be used (IMS/DC only).

   This parameter allows you to adjust the spa size so that CA View can transfer to user transactions.

   IMS/DC requires that the spa size remain the same.

   The spa size must be at least 18 bytes, and although you can specify a spa size of up to 100 bytes, only the first 18 bytes are used.

8. XMC11= specifies an optional 4-character CICS transaction ID that is displayed as part of message EBCXMC11 when a CICS user times out.