Chapter 7. Basic discussions 71
to a z/OS console message. When the job has finished, you can VARY A90,ONLINE on the
z/OS console and begin using the volume.
We usually modify the VATLST00 member in the z/OS PARMLIB to control the mount
attributes of new volumes, but this is not required.
7.5 Operating systems messages console
Current S/390 and zSeries machines have an Operating Systems Messages console function
that is provided through the Support Element (SE) or a Hardware Management Console
(HMC). This console function is sometimes known as the “system console” or the “hardware
system console”. z/OS attempts to use it if all other MVS consoles fail.
FLEX-ES emulates this console through the CLI window--the window with the flexes prompt.
Message ...