The following commands are z/OS (MVS) commands that are issued from MCS or EMCS consoles.
| Description | Command |
|---|---|
| Displays the information about all running processes | D OMVS,A=ALL |
| Displays the information defined in the BPXPRMxx | D OMVS,O |
| Displays the information about the mounted HFS | D OMVS,F |
| Displays the information about the process ID | D OMVS,PID=<pid> |
| Displays the information about kernel and data spaces | D A,OMVS |
| Forces a process ID to end | F BPXOINIT,FORCE,PID=<PID> |
| Sets a new configuration of BPXPRMxx member and makes a syntax check | SET OMVS=xx |
| Display summary of z/OS UNIX | D OMVS |
| Display z/OS UNIX options | D OMVS,OPTIONS |
| Display BPXPRMxx limits | D OMVS,LIMITS |
| Displays the last 10 (or less) failures | D OMVS,MF |
| Displays up to 50 failures | D OMVS,MF=ALL |
| Deletes the failure information log | D OMVS,MF=PURGE |
The following commands are issued from the OMVS shell.
| Description | Command |
|---|---|
| Displays the current pathname | pwd |
| Displays the contents and extended attributes of the current directory | ls -alWE |
| Displays the information about all running processes | ps -ef |
| Displays information about syntax and use of the command ls | man ls |
| Displays the information about the mounted HFS | df -P |
| Searches the HFS from the root to find the file specified | find / -name setup.sh |
| Display information about processes | ps -A |
| Stop a process | kill -s kill <pid> |
| Display interprocess communication information | ipcs -w |
Attention! Read recommended shutdown procedures before executing the command.
F OMVS,SHUTDOWN
F BPXOINIT,SHUTDOWN=FORKINIT
Attempting to shut down active BPXAS address spaces will result in the following message:
BPXM037I BPXAS INITIATOR SHUTDOWN DELAYED
Otherwise:
BPXM036I BPXAS INITIATORS SHUTDOWN.
$HASP395 BPXAS ENDED
This command terminates UNIX activity on the system. The command also provides a method for unmounting all file systems and hardening the cached buffers to disk.
F BPXOINIT,SHUTDOWN=FILESYS
F OMVS,RESTART
The F OMVS,RESTART command restarts the z/OS UNIX environment. This involves the following:
- Once the restart command has been accepted, indicated by the following message:
*BPXI058I OMVS RESTART REQUEST ACCEPTED
The first step in the restart process is to re-initialize the kernel and LFS. This includes starting up all physical file systems. 2. BPXOINIT is restarted and it will re-establish itself as process ID 1. 3. BPXOINIT re-establishes the checkpointed processes as follows: All checkpointed processes that are still active are re-established and those that are not found are not re-established and will have their checkpointed resources cleaned up. 4. After BPXOINIT completes its initialization, it will restart /etc/init or /usr/sbin/init to begin full function initialization of the z/OS UNIX environment. /etc/init performs its normal startup processing, invoking /etc/rc. 5. After /etc/init has completed full function initialization, a BPXI0041 message is issued indicating z/OS UNIX initialization is complete.
BPXI004I OMVS INITIALIZATION COMPLETE
Establish the alternate sysplex root using the new ALTROOT statement in a BPXPRMxx parmlib member:
ALTROOT FILESYSTEM (’PLEX75.SYSPLEX.ROOTALT1.ZFS’) MOUNTPOINT(’/rootalt’)
- Mount the ALTROOT file system as read-only and with AUTOMOVE=YES.
- Establish it during OMVS initialization or with the SET OMVS command.
- Send a regular KILL signal by issuing,
kill -s KILL pid - Wait 3 seconds
- Then send a superkill to force termination -
kill -K pid
You can change the setting of some of the BPXPRMxx values dynamically using the SETOMVS or SET OMVS commands.
SET OMVS=(00,FS)
SETOMVS MAXPROCUSER=8
Values that can be changed are: MAXPROCSYS - MAXPROCUSER - MAXFILEPROC - MAXFILESIZE - MAXCPUTIME MAXUIDS - MAXPTYS - MAXRTYS - MAXTHREADTASKS - MAXTHREADS - MAXMMAPAREA - MAXSHAREPAGES - MAXCORESIZE - MAXASSIZE - All IPC values FORKCOPY - STEPLIBLIST - USERIDALIASTABLE - PRIORITYPG - PRIORITYGOAL