FTAM/9000 Programmer's Guide

Glossary 453
Glossary
the rules (protocols) for the FTAM
state machine. (For example, the
Data Transfer regime allows
reading or writing of the file.)
Regimes are nested.
Responder The entity that
receives and services an initiator's
request; if applicable, the
responder returns a response; the
responder interacts directly with
the virtual filestore.
Sequential Flat Constraint Set
A constraint set that generates an
access structure that
• consists of two levels (levels zero
and one),
• may have data units at only the
leaf nodes, and
• has no data unit at the root node.
Service Provider Process
(SPP) See “Application Entity.”
State See “Regime.”
Threshold The number of
functions (within a set of grouped
functions) that must change
regimes for the entire group to be
successful.
Tracing A diagnostic tool that
records specific events on
individual HP OSI Transport
Services subsystems. Tracing
degrades system performance and
thus, is not always enabled.
Unstructured Constraint Set A
constraint set that contains a
single root node with a data unit;
no file structure information is
available.
Virtual Filestore (VFS) An
abstract model for describing files
and their attributes, and the
possible actions on them; provides
a uniform interface to all real file
systems.