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S390/z/VM tips and tricks
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These are some tips and tricks that are useful for z/VM.
CMS
| COMMAND | DESCRIPTION | EXAMPLE |
|---|---|---|
| LISTFILES | List files | |
| FILELIST | another list files, interactive | |
| QUERY ARGS | Query general VM state | |
| Q ARGS | Shortcut to the QUERY command |
|
| Q CPUS | List allocated cpus | |
| Q STORAGE | List allocated memory | |
| Q DASD | List allocated disks | |
| Q DISK | List attached disks | |
| Q ACCESSED | List disks available under CP/CMS | |
| Q OSA | List allocated network devices | |
| Q READER ALL | Show all queued files in the reader spool queue | |
| ERASE | Erases files | ERASE FILENAME DISK |
| COPY | Copies files | FIXME! |
| RENAME | Renames files | FIXME! |
CP
| COMMAND | DESCRIPTION | EXAMPLE |
|---|---|---|
| DISCONNECT | Disconnect from the current VM, but leave the VM running | |
| LOGOFF | Shut the current VM off | |
| IPL | Restart the VM and launch the Initial Program Loader (i.e. the bootloader) | |
| I | Shortcut for the IPL command | |
| IPL NUMBER | Restart the VM and IPL a specific image | IPL 150 |
| IPL CMS | Restart the VM and launch CMS | |
| VI VMSG NUMBER ARGS | After launching the IPL, select NUMBER and append ARGS to the program's command line (e.g. the Linux kernel's command line) |
VI VMSG 0 init=/bin/bb |
| CP SET RUN ON | Maintain VM running when disconnecting from z/VM |
Linux
To run CP commands from Linux while in the x3270 session, type: #CP COMMAND, e.g. #CP SYSTEM CLEAR. This would stop the VM.