MVS FORCE command and CA Top Secret shutdown.

Document ID : KB000024012
Last Modified Date : 14/02/2018
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Question:

When should the MVS FORCE command be used to shutdown CA Top Secret?

If this isn't recommended, what problems could occur from using it?

 

Answer:

The FORCE command shouldn't be used to shutdown CA Top Secret.

The recommended way is 'P TSS'. You can then reply with:

  • 'T' for temporary shutdown
  • 'Z' for End of Day shutdown (IPL).

The FORCE command may be needed under certain circumstances, but this introduces a risk of impacting the Security File integrity. If, in a situation where the FORCE command is necessary, a dump of the CA Top Secret Address Space should be taken, before using the FORCE command to shutdown CA Top Secret.

The dump of the CA Top Secret Address Space can be taken via the 'TSS MODIFY(SVCDUMP)' command. If, for some reason, TSS commands can't be issued, the dump can be obtained via the MVS DUMP command:

DUMP COMM=tssregion
REPLY nn,JOBNAME=tssjobname,
   SDATA=(ALLNUC,CSA,LPA,LSQA,NUC,PSA,RGN,SQA,SUM,SWA,TRT),
   END