After preparing the DASD volumes, you can initiate a multi-volume dump by performing an IPL from one of the prepared volumes.
Procedure
To obtain a dump with the multi-volume DASD dump tool, perform
the following main steps:
- Stop all CPUs.
- Store status on the IPL CPU.
-
IPL the dump tool using one of the prepared volumes, either 0.0.4711 or 0.1.4712.
The process for initiating the IPL is the same as for a single volume DASD.
For examples, see Initiating a DASD dump.
Note: Do not clear the main memory.
The dump process can take several minutes depending on each volume's block size and the amount of
system memory. After the dump has completed, the IPL CPU should go into disabled wait.
The following PSW indicates that the dump process has completed 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
Dumping to: 0.0.4711
00000128 / 00001024 MB
00000256 / 00001024 MB
00000384 / 00001024 MB
00000512 / 00001024 MB
Dumping to: 0.1.4712
00000640 / 00001024 MB
00000768 / 00001024 MB
00000896 / 00001024 MB
00001024 / 00001024 MB
Dump successful
- You can IPL Linux® again.