TS/MP System Management Manual (G06.24+, H06.03+)

NonStop TS/MP System Management Manual—541819-001
D-1
D Migration Information
This appendix covers migration and compatibility issues for the NonStop TS/MP
product on C-series and D-series systems. These topics are discussed:
•
Interprocess communication issues
•
Application conversion
For information on migration and compatibility issues relative to the Pathway/iTS
product, see the Pathway/iTS System Management Manual.
For more information about running applications on HP NonStop systems, see the
Guardian Application Conversion Guide .
Interprocess Communication Issues
The NonStop TS/MP product supports D-series operating system features as
described in this list.
•
Requester processes can run at high and low PINs.
•
Server processes can run at a high PIN under the following conditions:
°
The Pathway HIGHPIN option is set to ON for the object. (The default value is
OFF.)
°
The ?HIGHPIN option is set by compiler or binder directive in the object file.
°
There is a high PIN available.
Alternatively, to force a server to run at a low PIN, even if the other conditions
for running at a high PIN are satisfied, leave the HIGHPIN option set to OFF
(the default value) or, to document your intention, set the HIGHPIN option to
OFF with the SET SERVER command.
If you have configured your system to allow the use of high PINs, you can define
additional server classes without exhausting PINs that you might need for other
processes. Additionally, you have more freedom to define servers as static, thus
reducing the overhead associated with process startup.
Note. There is no direct migration path for PATHMON environments from C-series systems to
D40.00 or later HP NonStop systems. In addition, interoperability between PATHMON
environment processes on C-series systems and D40 or later HP NonStop systems is not
supported.
For information about migrating a PATHMON environment from a C-series system to an
earlier-release D-series system, and also for information about interoperation between
PATHMON environment processes on C-series and HP NonStop systems, see the “Migration
Information” appendix in the D30.02 version of the
NonStop TS/MP and Pathway System
Management Guide .