Initiating a tape dump

Initiate a tape dump by performing an IPL on the IPL CPU.

To obtain a dump with the tape dump tool, perform the following main steps:

1. Ensure that the tape is rewound.
2. Stop all CPUs.
3. Store status on the IPL CPU.
4. IPL the dump tool on the IPL CPU.
   Note: Do not clear the main memory.

   The dump tool writes the number of dumped MB to the tape drive message display.

   The dump process can take several minutes, depending on the device type you are using and the amount of system memory available. When the dump is complete, the message dump*end is displayed and the IPL CPU goes into disabled wait.

   The following PSW indicates that the dump was taken successfully:

   (64-bit) PSW: 00020000 80000000 00000000 00000000

   Any other disabled wait PSW indicates an error.

   After the dump tool is IPLed, messages that indicate the progress of the dump are written to the console:

   Dumping 64 bit OS
   00000032 / 00000256 MB
   00000064 / 00000256 MB
   00000096 / 00000256 MB
   00000128 / 00000256 MB
   00000160 / 00000256 MB
   00000192 / 00000256 MB
   00000224 / 00000256 MB
   00000256 / 00000256 MB
   Dump successful

   Messages might be shown on the tape display.

   number

   The number of MB dumped.

   dump*end

   The dump process ended successfully.

5. You can IPL Linux® again.