Pathway Products Glossary

Glossary
Compaq NonStop™ Pathway Products Glossary—426762-001
Glossary-15
link manager
link manager. A process that requests links to server processes and provides link access after
the link is granted. TCPs, LINKMON processes, router processes, and link control
service (LCS) processes are the link managers in the Pathway environment. See also
link access
and link granting.
LINKMON process. A Guardian process that supports access to servers in the Pathway and
NonStop™ TUXEDO environments. LINKMON processes act as link managers for
requesters and clients that use interfaces such as the Pathsend procedure calls, the
RSC/MP programmatic interface, and the NonStop™ TUXEDO ATMI. See also link
manager.
load balancing. Distributing the workload across the user-defined resources in an application
based on the estimated amount of work they will be doing. For example, in the
Pathway/XM environment, load balancing is done automatically both during initial
configuration (by PXMCFG) and at run time through actions to balance the dynamic
workload.
lock. A mechanism that coordinates access to the same data; locks are either shared or
exclusive.
log file. See PATHMON log file
, Pathway/XM log file, and event log file.
low PIN. A process identification number (PIN) in the range 0 through 255. (PIN 255 is
reserved by the system; it is never assigned to a running process, but is used by
high-PIN processes to communicate with low-PIN processes.) See also process
identification number (PIN) and high PIN.
M
manageability. The ability to easily and comprehensively manage a subsystem, system, or
network.
MAKEUL. A TACL macro used to perform pTAL compilation of user-written conversion
routines for use with the Pathway/iTS TCP and SCREEN COBOL requesters and to
create the native TCP user library containing these routines.
management application. An application program that automates configuration and
management tasks. Such a program can request from the PATHMON process the same
kinds of services that system managers can request through the PATHCOM interface. A
management application can also interact with subsystems other than the Pathway
subsystem. Management applications use the Subsystem Programmatic Interface (SPI)
to send commands to subsystems and the Event Management Service (EMS) to receive
notification of significant events.
message-oriented requester. A SCREEN COBOL requester that sends data from working
storage to a device (or to a front-end process that controls a device) and receives data
from the device or process into working storage by way of Message Section templates.
SCREEN COBOL requesters that use the intelligent device support (IDS) facility are
message-oriented. These requesters use SEND MESSAGE statements and their REPLY