Availability Guide for Change Management

Tools for Online Change
Availability Guide for Change Management–125506
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NonStop TM/MP Management Tools
NonStop TM/MP Management Tools
The NonStop TM/MP product protects databases in OLTP environments using its main
functional component, the TMF subsystem. The TMF subsystem manages database
transactions, keeps track of database activity through audit trails, and provides database
recovery methods. The NonStop TM/MP product is one of the core services that make
up the Tandem application environment.
TMF Subsystem Management Interfaces
The NonStop TM/MP product provides the following ways to make changes to the TMF
subsystem:
•
Interactively using the TMFCOM command-line user interface
•
Programmatically, by writing a management application program that uses the
NonStop TM/MP programmatic interface, TMFSERVE
TMFCOM
TMFCOM allows commands to be entered and responses to be received through a
terminal keyboard or monitor.
Management Application Programs
The TMFSERVE process provides programmatic access to SPI, making it possible to
construct management application programs that monitor and control the NonStop
TM/MP environment. TMFSERVE enables you to programmatically request the same
operations available through TMFCOM. SPI is a token-oriented message interface that
is part of the DSM product line.
How the TMF Subsystem Management Interfaces Work
TMFCOM and management application programs send commands and instructions to
TMP, the TMF management process pair. TMP is in charge of operations that require a
single point of control in a system, such as starting and stopping the TMF subsystem,
initiating the recovery processes, and implementing configuration changes.
Figure 7-4 shows how TMFCOM and a management application program communicate
with TMP through TMFSERVE processes.