TMF Glossary (G06.24+)

TMF Glossary
HP NonStop TMF Glossary—522415-002
Glossary-16
Subsystem Control Facility (SCF)
Subsystem Control Facility (SCF). An interactive interface for configuring, controlling, and
collecting information from objects on S-series NonStop servers.
Subsystem Programmatic Interface (SPI). A common, message-based interface that can
be used to build and decode messages used for communication between requesters
and servers—for instance, in a management application. The interface includes
procedures to build and decode specially formatted messages; definition files in TAL,
COBOL, C, and TACL for inclusion in programs, macros, and routines using the
interface procedures; and definition files in Data Definition Language (DDL) for
programmers writing their own subsystems.
system failure. The failure of multiple system components (processors or disks) that
causes the entire system to become unavailable.
super ID. Defined as username super.super and userid 255,255, it allows the user to act as
the owner of any object on a given cluster.
swap file. A disk file used by the system for virtual memory.
system-defined transaction. A TMF transaction initiated by NonStop SQL either in a
program unit or in a requester on whose behalf the program unit performs database
operations. Contrast with user-defined transaction.
Most Data Definition Language (DDL) and Data Manipulation Language (DML)
statements are transaction-initiating; the system automatically initiates a transaction
when the statement begins executing. The exceptions include DML statements
executing on nonaudited tables or under read uncommitted access on audited tables.
T
Tandem Advanced Command Language (TACL). The command language that provides
the NonStop Kernel operating system’s interactive user interface. TACL features built-
in functions that can be used for constructing programmatic routines and macros.
Some of these functions call operating system procedures that perform TMF
operations.
TMF. The Transaction Management Facility, a product that provides transaction protection
and database consistency in demanding online transaction processing (OLTP) and
decision-support environments. It gives full protection to transactions that access
distributed SQL and Enscribe databases, as well as recovery capabilities for
transactions, online disk volumes, and entire databases. To furnish this service, TMF
manages database transactions, keeps track of database activity through audit trails,
and provides database recovery methods.
TMF catalog. The database that specifies where all dumped files reside and which dump
media are available for reuse.