OpenExtensions for z/VM "Q"s and "A"s

Question: Can you provide some information on taking a dump for diagnosis of an OpenExtensions problem?

Answer: If you have a loop, hang, or wait condition in an OpenExtensions process and need a dump for diagnosis, you should issue the following commands:

  #CP SPOOL CONSOLE START *
  #CP DISPLAY PSW
  #CP DISPLAY G
  #CP SPOOL CONSOLE CLOSE
  #CP VMDUMP 0-END DCSS FORMAT CMS

The first four commands above will place a file in your reader. Receive this file and use it in conjunction with the dump to determine what was happening in your virtual machine when the dump was taken.

---

For more questions and answers, go to our archive of questions and answers.