Controlling the operating system effectively, includes the following
tasks:
- Display current system status, such as the number of active jobs
and teleprocessing functions, so you can take appropriate actions
to operate the system efficiently and to correct potential problems
- Display the status of devices and availability of paths.
- Communicate among several consoles.
- Communicate within a sysplex. In a sysplex, several MVS™ systems
function together to process work, and you might need to know about
the operations of more than one system in a sysplex.
- Set the time and change the system parameters.
- Use the system restart function to control certain system functions.
- Respond to message IEA502A.
- Respond to message BLW004A.
- Activate a workload management service policy for
a sysplex.
MVS provides system and subsystem commands that
display job and system status either when requested or continually
at a regular interval. Other commands route status information to
one or more consoles and provide communication among operators in
a multiple-console environment, as well as communication with time-sharing
users. Many commands let you display information about all the systems
in a sysplex, and some commands allow you to control any target system
in the sysplex.