APPENDIX E: System/38 Configuration Guide
141
STEP 7. Vary Control Unit ON
The Vary Control Unit VRYCTLU command is used to vary one or more control units online or offline
with the system. This command should be executed after the communications line it is attached to has
first been varied online.
::VRYCTLU CTLU(DL51CU) STATUS(*ON)
STEP 8. Vary Devices Online
The Vary Device VRYDEV command is used to vary one or more devices online or offline with the
system. A device cannot be varied online if:
• Its power is turned off
• The control unit to which it is attached is varied off line
NOTE
Although the VRYDEV command can be executed before a switched connection is
made, the device is not actually online until the connection is made.
::VRYDEV DEV(LINKWSl) STATUS(*ON)
VRYDEV DEV(LINKWS2) STATUS(*ON)
VRYDEV DEV(LINKPl) STATUS(*ON)
STEP 9. Start Interactive Subsystem
The Start Subsystem STRSBS command starts a subsystem based on the subsystem description specified
in the command. When the subsystem is started, CPF allocates the available workstations that were
specified in the subsystem description. Each workstation whose name (or type, if not specified by name)
is contained in one of the subsystem descriptions workstation entries, and whose entry specifies
AT(*SIGNON), is allocated to this subsystem unless it is currently signed on to another subsystem. The
sign-on prompt is displayed on each workstation that is allocated to an available workstation address.
::STRSBS SBS(QINTER)
Problem Determination
Verify that the devices you configured are operational. Make sure that display stations are powered on
and that there is a sign-on display.
Make sure your printers are turned on and ready to print. Press the print key at that display station.
Observe which printer is printing. The printer assigned to that particular display should print.
If you have problems, compare a configuration printout with what should be defined. Verify that the
communication line is defined properly. Make sure the synchronous port cable is positioned properly
(DCE or DTE, whichever is applicable) on the LinkUp 5294.
If there are any problems associated with the configuration procedure, consult your
IBM System/38 Guide
to Program Product Installation and Device Configuration, GC21-7775,
or the
IBM System/38 Control Language
Reference Manual, SC21-7731.