Installing terminal definitions

For groups of TERMINAL definitions, use the following procedure:
  1. Make sure that nobody is using the terminals that you want to install. Remember that CEMT INQUIRE TERMINAL puts a lock on the TCT entry, and this also prevents installation of a group containing that terminal.
  2. Make sure that there are no ATIs outstanding for the terminals.
  3. Use CEMT, with a generic name if appropriate:
    CEMT SET TERMINAL(trmid) RELEASED OUTSERVICE NOATI
  4. Install the resource definitions:
    CEDA INSTALL GROUP(groupname)
  5. Use CEMT to make the terminals available again:
    CEMT SET TERMINAL(trmid) ACQUIRED INSERVICE ATI

TERMINAL and TYPETERM definitions are resolved during installation to become a TCT entry, sometimes known as a TCT terminal entry or TCTTE. Each definition contains only some of the information necessary to build a TCT entry.

Each TYPETERM definition must be installed before or at the same time as the TERMINAL definitions that reference it. When you are using CEDA to install groups, if the TYPETERMs are in a separate group from the TERMINALs, you must install the TYPETERMs group before the TERMINALs. You may include TYPETERMs and TERMINALs in the same group for testing purposes, although it is not recommended for long-term use. (See What should be in a group?.)

Because the TERMINAL definition is not necessarily in the same group as its associated TYPETERM definition, the global catalog is used to store the TYPETERMs.

Changing a TYPETERM definition and then reinstalling it has no effect on an already installed terminal entry, even though the TERMINAL definition used to create it refers to the TYPETERM. To change the terminal entry, you must reinstall both the TYPETERM and the TERMINAL.