Verifying dump status

To verify dump status issue the DISPLAY DUMP,STATUS command. For example, after IPLing SYSTEM1 specifying DUMP=NO as a system parameter, and without requesting any dumps or specifying any DUMPDS or CHNGDUMP commands, the output shown in Figure 1 would be expected as a result of the DISPLAY DUMP,STATUS command:

Figure 1. Example: verifying dump status

  IEE852I 10.56.03 SYS1.DUMP STATUS
  SYS1.DUMP DATA SETS AVAILABLE=000 AND FULL=000
  CAPTURED DUMPS=0000, SPACE USED=00000000M, SPACE FREE=00000500M
  AUTOMATIC ALLOCATION IS: INACTIVE
     NO SMS CLASSES DEFINED
     NO DASD VOLUMES DEFINED
     NAME=SYS1.DUMP.D&DATE..T&TIME..&SYSNAME..S&SEQ.
        EXAMPLE=SYS1.DUMP.D930324.T105603.SYSTEM1.S00000

Now assume that the following steps are performed to establish the automatic allocation function:

Set up your installation data set name pattern using the DUMPDS command:
```
DUMPDS NAME=&SYSNAME..&JOBNAME..Y&YR4.M&MON..D&DAY.T&HR.&MIN..S&SEQ.
```
Note: This step is only required if you are not using the default name pattern as shown in Figure 1.
Add dump data set resources that can be used by the automatic allocation function:
```
DUMPDS ADD,VOL=(SCRTH1,HSM111)
DUMPDS ADD,SMS=(DUMPDA)
```
Activate automatic dump data set allocation using the DUMPDS command:
```
DUMPDS ALLOC=ACTIVE
```

Note: These steps can be performed after IPL using the DUMPDS command from an operator console, or early in IPL by putting the commands in the COMMNDxx parmlib member and pointing to the member from the IEASYSxx parmlib member using CMD=xx.

If you use COMMNDxx, you may want to specify DUMP=NO in the IEASYSxx parmlib member to prevent dumps taken during IPL from being written to SYS1.DUMPxx data sets.

After issuing the DUMPDS commands shown in steps 1 through 3, requesting dump status would be as shown Figure 2.

Figure 2. Example of dump status

SYSTEM1  IEE852I 12.34.18 SYS1.DUMP STATUS 886
SYS1.DUMP DATA SETS AVAILABLE=000 AND FULL=000
CAPTURED DUMPS=0000, SPACE USED=00000000M, SPACE FREE=00000500M
AUTOMATIC ALLOCATION IS: ACTIVE
   AVAILABLE SMS CLASSES: DUMPDA
   AVAILABLE DASD VOLUMES: SCRTH1,HSM111
   NAME=&SYSNAME..&JOBNAME..Y&YR4.M&MON..D&DAY.T&HR.&MIN..S&SEQ.
      EXAMPLE=SYSTEM1.#MASTER#.Y1994M01.D26T1634.S00000