Automatic restart manager (ARM) is an MVS™ component
that can automatically restart the TCP/IP stack after an abnormal
end (ABEND).
During initialization, TCP/IP automatically registers with the
automatic restart manager using the following options:
REQUEST=REGISTER
ELEMNAME=EZAsysclonetcpname
ELEMTYPE=SYSTCPIP
TERMTYPE=ELEMTERM
where:
- sysclone is a 1– or 2–character
shorthand notation for the name of the MVS system.
For a complete description of the SYSCLONE static system symbol, see z/OS MVS Initialization and Tuning Reference.
- tcpname is a 1– to 8–character
name of the TCP/IP stack which registers with the automatic restart
manager. For example, if the SYSCLONE value is 02 and the TCP/IP stack
name is TCPCS, the resulting ELEMENT value is EZA02TCPCS.
Rules: - The TCP/IP stack supports automatic restart only on the same system.
Do not explicitly specify TERMTYPE(ALLTERM) in the automatic restart
management policy for TCP/IP. A policy that uses the default value
ALLTERM is overridden by the TCP/IP stack registration value ELEMTERM.
- To prevent dynamic configuration changes made using the VARY TCPIP,,OBEYFILE
command from being lost after restarting TCP/IP, ensure that these
configuration changes are part of the normal TCP/IP startup procedure.
For more information about automatic restart manager, see z/OS MVS Setting Up a Sysplex.