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PORTCHECK

Name
PORTCHECK
Summary
Specifies whether the availability of a port should be tested before a user server address space is started.
Default
1
Supported Values
Value Description
0 No checking is done.
1 z/Server issues the following command (visible in SYSTSPRT DD statement):
D TCPIP,,N,CONN,PORT

The command response can be found in the hardcopy log. When the port is not available, for instance, when it is in status LISTEN, TIMEWT, or FINWT2, the response to the DISPLAY command is useful for analysis.

Additional Information
It is strongly recommended to set PORTCHECK="1" in the scheduler address space configuration.
Example
PORTCHECK="1"
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