Pathway/iTS System Management Manual (G06.24+)

Introduction to Pathway/iTS System Management
HP NonStop Pathway/iTS System Management Manual—426748-002
1-15
Personal Computers and Workstations
Personal Computers and Workstations
Personal computers (PCs) and workstations can access a PATHMON environment
using the RSC/MP product.
RSC/MP enables client-server computing by supporting a variety of hardware and
software configurations and communications protocols for personal computers (PCs)
and workstations. In addition to delegating some processing normally performed by the
NonStop system to the PC, RSC/MP allows you to take advantage of the graphical
user interfaces (GUIs)—pull-down menus, icons, dialog boxes, and online help—that
are available on the PC.
For more information about the RSC/MP product, see the HP NonStop Remote Server
Call (RSC/MP) Installation and Configuration Guide.
External TCPs
An external TCP is a TCP running outside of your PATHMON environment. The
external TCP is controlled by another PATHMON process, but it can communicate with
processes within your PATHMON environment. You determine how many (if any)
external TCPs can communicate with your PATHMON environment when you
configure it.
As an example, a screen program run by an external TCP might need to communicate
with a server class in your PATHMON environment. The external TCP communicates
with the PATHMON process in your environment to request a link to a server class in
your environment. This situation arises when:
•
PATHMON environments are configured along application lines. For example,
suppose that Application A is running under PATHMON process A, and Application
B is running under PATHMON process B, and the screen program in Application A
needs to use the server class in Application B.
•
PATHMON environments are configured along network node boundaries. For
example, suppose that a PATHMON environment on the node named \SANFRAN
supports an order-processing application for the San Francisco area; a PATHMON
environment on the node named \WHOUSE supports an inventory application for a
central warehouse; the order-processing application needs information about
inventory items.
Figure 1-5 on page 1-16 illustrates a PATHMON environment (running under
PATHMON process $PMA) communicating with another PATHMON environment
(running under PATHMON process $PMB). $PMA accepts requests from the TCP on
PATHMON environment B (TCPB) and grants TCPB links to the server class that
$PMA controls. Then, TCPB opens a server process in $PMA's system and sends
transaction requests to that server process. Conversely, TCPA can request server-
class links from $PMB. PATHMON environment A views TCPB as an external TCP.