Use this method to take a stand-alone dump of an MVS™ system that resides in a sysplex. Assume
that the MVS system to be dumped
is “SYSA”.
- IPL the stand-alone dump program on SYSA (see “Running the stand-alone
dump Program”).
- Issue VARY XCF,SYSA,OFFLINE from another active MVS system in the sysplex if message IXC402D
or IXC102A is not already present.
You do not have to wait for
the stand-alone dump to complete before issuing the VARY XCF,SYSA,OFFLINE
command.
- Reply DOWN to message IXC402D or IXC102A.
Performing steps 2 and 3 immediately after IPLing stand-alone dump
will expedite sysplex recovery actions for SYSA and allow resources
held by SYSA to be cleaned up quickly, thus enabling other systems
in the sysplex to continue processing.
After you IPL the stand-alone dump, MVS cannot
automatically ISOLATE system SYSA through SFM. Message IXC402D or
IXC102A issues after the VARY XCF,SYSA,OFFLINE command or after the
XCF failure detection interval expires. You must reply DOWN to IXC402D
or IXC102A before sysplex partitioning can complete.
Note: DO NOT perform a SYSTEM RESET in response to IXC402D, IXC102A
after the IPL of stand-alone dump. The SYSTEM RESET is not needed
in this case because the IPL of stand-alone dump causes a SYSTEM RESET.
After the IPL of stand-alone dump is complete, it is safe to reply
DOWN to IXC402D or IXC102A.