OSI/FTAM Configuration and Management Manual

Introduction to Tandem FTAM
OSI/FTAM Configuration and Management Manual—421944-001
1-6
Tandem FTAM Components
Application Manager (APLMGR) Subsystem on page 1-6 and FTAM Subsystem on
page 1-6 describe the components shown in Figure 1-2 on page 1-5. FTAM Subsystem
further describes the components shown in the figure in its subsections Initiator Process,
Responder Process
, and Virtual Filestore (VFS), all on page 1-7.
Application Manager (APLMGR) Subsystem
Tandem OSI/Application Manager (APLMGR) manages Tandem FTAM services and
network communications through OSI/AS, OSI/TS, and TLAM (or PAM), X25AM, or
TCP/IP to remote computer systems. Using APLMGR, you can create multiple FTAM
processes on your system to manage workflow and enhance the efficiency of the
operation of Tandem FTAM.
The APLMGR process stores important configuration data for Tandem FTAM in an
Enscribe key-sequenced file called the management information base (MIB).
Information such as naming and addressing attributes, the location of the primary and
backup processors, and the execution priority for FTAM processes is stored in the MIB.
When you add new initiator and responder processes to Tandem FTAM, the APLMGR
process adds this configuration data to the MIB. If you change the configuration of
existing FTAM processes, the APLMGR process updates its MIB file.
APLMGR is responsible for
•
Selecting FTAM initiator processes to provide resources for Tandem FTAM services
•
Maintaining configuration information for itself and the FTAM subsystem
•
Starting, altering attributes of, and stopping initiator and responder processes, and
maintaining information about the states of these processes
•
Handling inquiry and diagnostic information for itself and the FTAM subsystem
The APLMGR subsystem consists of the APLMGR process, which actually performs
the management functions, and the MIB, which is the file containing configuration
information. These components are shown in the shaded rectangle in Figure 1-2
on
page 1-5. The term APLMGR, when not followed by the word process, generally refers
to the APLMGR subsystem.
FTAM Subsystem
The FTAM subsystem is the collection of all Tandem FTAM initiator and responder
processes currently running and associated with the same APLMGR process and MIB,
along with the virtual filestore (VFS), by which those processes access Tandem files
managed by the file system. An FTAM process is either an initiator process, which
requests FTAM services, or a responder process, which performs FTAM services. FTAM
initiator and responder processes are independent of each other: you need not have both
kinds of processes present on a Tandem system.
Note. By default, FTAM processes run at a high PIN. If you want the APLMGR to run at a low
PIN, you must specify this in the RUN command. For initiator and responder processes, you
can specify the attribute HIGHPIN OFF in the ADD PROCESS or ALTER PROCESS
command.