SNAX/XF LU Network Services Manual

Building the ESS Tables
Using LUNS
097841 Tandem Computers Incorporated 2–9
preceded by a dollar sign ($), and in the form , $ axxxx where a is an alphabetic
character and xxxx is alphanumeric characters or digits.
This parameter is primarily used to allow the manipulation of the Pathway data
stream by the specified process before the data stream is sent to SNAX/XF. The
Creator process, SNAX/XF, and the process named in the PROCESS parameter
must reside in the same Tandem Expand node. The running PATHMON process
can reside in a remote node.
PRINTER name
specifies the name of a printer that may be accessed by the PRINT-SCREEN
command in SCREEN COBOL. The value for name can be either a file name (fully
qualified if on a remote system) or be specified as IS-ATTACHED if attached to the
same controller.
The example below shows how to code the CONCDATA field so that the appropriate
information is passed to the Creator process.
CONCDATA "PATHWAY NAME \SYS2.$PATHY, PROGRAM INVENTORY"
In the example, a Pathway application residing on a remote system is started at a local
terminal. PATHMON $PATHY on the remote system is used for the session; hence,
the remote system name must also be specified. The initial SCOBOL program to run
on the terminal is INVENTORY.
Note LUNS closes any OPEN requests to Pathway that have not been used for 30 seconds. This is so that
PATHMON does not have all of its allowed OPEN calls used up by multiple Creator processes
Logon Records for
Processes on a Host
System (Passthrough)
All logon records pointing to host processes must specify SENDHOST Y (yes). Within
such records, you can designate a particular gateway line, PU, or LU for LUNS to use
to establish the passthrough session. The relevant operands are GATELINE, GATEPU,
and GATELU. These operands are mutually exclusive; if you specify one, you cannot
specify either of the others.
When gateway lines, PUs, and LUs reside on a local system and you do not specify
any gateway parameter, LUNS will establish the session by using the first available
gateway LU properly defined for passthrough and subordinate to the available
gateway PU and line. A gateway LU is properly defined and available when it is
active and the SCF PASSTHRU attribute is specified as ON and when it is not
currently in-session, suspended, open, reserved for static passthrough in an ORDER
record, or associated with another LU by means of the SCF ASSOCIATE attribute.
Note that what you specify for the SCF MAXPTS attribute either on the secondary line
or on its subordinate PU s can effect the availability of gateway LUs. For detailed
information, see the MAXPTS attribute description in the SCF Reference Manual for
SNAX/XF.
When the gateway lines, PUs, and LUs reside on a remote system in an Expand
network, you must always specify GATELINE, GATEPU, or GATELU explicitly and
use the fully qualified name of the line, PU, or LU you choose for the session.