z/VM guest example

You can initiate a dump to tape from a Linux instance that is running as a z/VM® guest.

Procedure

If 193 is the tape device:

Rewind the tape:
```
#cp rewind 193
```
Stop all CPUs:
```
#cp cpu all stop
```
Store status:
```
#cp store status
```
IPL the tape device:
```
#cp i 193
```

Results

On z/VM, a three-processor machine in this example, you will see messages about the disabled wait:

01: The virtual machine is placed in CP mode due to a SIGP stop from CPU 00.
02: The virtual machine is placed in CP mode due to a SIGP stop from CPU 00.
"CP entered; disabled wait PSW 00020000 80000000 00000000 00000000"

You can now IPL your Linux® instance and resume operations.