OSI/FTAM Programming Reference Manual

Introduction to NonStop OSI/FTAM
HP NonStop OSI/FTAM Programming Reference Manual—528611-001
1-7
FTAM and APLMGR Subsystems
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Remote FTAM initiator on the network, which can communicate with the NonStop
FTAM responder and the Guardian file system.
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Remote FTAM responder on the network, which services requests initiated by the
NonStop FTAM initiator for information stored in a remote file storage system.
FTAM and APLMGR Subsystems
For the purposes of configuration and management, the NonStop FTAM software
consists of two subsystems: FTAM and APLMGR. Figure 1-3 on page 1-8 illustrates
the major components of these subsystems.
The FTAM subsystem consists of the initiator and responder processes and the objects
representing associations between those processes and FTAM implementations in
remote systems. You can configure multiple initiator or responder processes, or both,
as needed.
The virtual filestore (VFS) acts as an interface to the Guardian file system. Files
accessible via the Guardian file system can also be accessed via the VFS component
of the responder. This includes all files on the system on which the responder process
is running, as well as all files on the Expand network to which that system belongs. The
responder uses the VFS to access the Guardian file system in servicing requests from
a remote FTAM initiator.
The APLMGR subsystem—also called simply APLMGR—manages NonStop FTAM.
Through the APLMGR subsystem, you can configure and control initiator and
responder processes. The APLMGR subsystem comprises the APLMGR process and
its management information base, or MIB. (The APLMGR MIB stores the configuration
information for the APLMGR, initiator, and responder processes, while the OSI
manager MIB that is part of OSI/AS stores configuration information for the OSI
underlying services.)
The APLMGR process uses the information stored in the APLMGR MIB to create the
initiator and responder processes. For a complete discussion of the SCF commands
used to manage the initiator and responder processes, refer to the OSI/FTAM and
OSI/APLMGR SCF Reference Manual. For information on using the SCF commands to
configure and control NonStop FTAM, refer to the OSI/FTAM Configuration and
Management Manual.
Note. The initiator and responder functions of remote FTAM implementations are not
necessarily performed by separate processes.