Using the dump command to dump z/OS UNIX data

Enter the following command to start the dump:

DUMP COMM=('Descriptive name for this OMVS dump')

You can specify up to 100 characters for the name of the dump.

The system responds and gives you a prompt ID to which you reply, specifying the data to be included in the dump. If you specify the CONT option, the system prompts you for more input.

In the following examples, rn is the REPLY number to the prompt.

Enter the first reply:
```
R rn,SDATA=(CSA,SQA,RGN,TRT,GRSQ),CONT
```
These data areas contain system control blocks and data areas that are generally necessary for investigating z/OS UNIX problems.
Enter the next reply:
```
R rn,ASID=(1B,2A,47,52),CONT
```
In this example, X'1B' is the OMVS address space. The other address spaces specified are those believed to be part of the problem. You can specify up to 15 ASIDs.
Enter the last reply:
```
R rn,DSPNAME=(1B.SYSZBPX1,1B.SYSZBPX2),END
```
This example specifies two data spaces:
- The kernel data space, which is always needed because it contains kernel data and CTRACE data
- The file system data space, which is useful if the hang condition appears to be due to a file system latch, for example.
Note that the kernel address space must be associated with the data space name; in this case, by specifying ASID X'1B'.

For more information on the DUMP command, particularly on specifying a large number of operands, see z/OS MVS System Commands.