Controlling coupling facility data table server regions

You can issue commands to control a coupling facility data table server, using the MVS MODIFY (F) command to specify the job or started task name of the server region, followed by the server command.

About this task

The general form of a coupling facility data table server command, using the short form F, is as follows:

F job_name,command parameters... comments

You can use the following commands to control the coupling facility data table server region.

Procedure

To modify the server initialization parameters, use the SET command:
```
SET keyword=operand[,keyword=operand,…]
```
The command can be abbreviated to T, as for the MVS SET command. See The SET command options for details.
To display the values of one or more parameter values or statistics summary information on the console, use the DISPLAY command:
```
DISPLAY keyword[=operand][,keyword[=operand,]…]
```
The valid keywords for DISPLAY are all the initialization parameters, plus an additional set described under DISPLAY and PRINT command options.
The command can be abbreviated to D, as for the MVS DISPLAY command.
To print the output that the DISPLAY command produces, use the PRINT command:
```
PRINT keyword[=operand][,keyword[=operand,]…]
```
The command produces the same output as DISPLAY, supporting the same keywords, but on the print file only.
To delete a table, use the DELETE TABLE=name command.
The table must not be in use for this command to succeed. You can abbreviate the command to DEL.
To stop the server normally, use either the STOP command or the MVS STOP command.
The server waits for any active connections to end first and prevents any new connections while it is waiting. The command can be abbreviated to P; for example P jobname.
To request an automatic restart, use the CANCEL command.
This command terminates the server immediately. You can specify whether the server will automatically restart. For information about CANCEL RESTART see The CANCEL command options.
The server also responds to XES events such as an operator SETXCF command to alter the structure size.
If the server can no longer access the coupling facility, it automatically issues a server CANCEL command to close itself down immediately.