Introduction to TRANSFER Delivery System

Monitoring the System The TRANSFER Environment
4-6 109426—Introduction to TRANSFER Delivery System
Monitoring the System
System managers and operators routinely use several Tandem products to monitor the
TRANSFER delivery system. Tandem provides the tools to check the following:
■ PATHWAY environment
PATHCOM, the PATHWAY command interface, allows you to monitor activity in
a PATHWAY system, to stop terminals and processes when problems arise, to
perform online load balancing, and to make temporary configuration changes. (You
make permanent changes to your configuration by using Define files.)
■ Network environment
Three tools—the Communications Utility Program (CUP), the Communications
Management Interface (CMI), and the Subsystem Control Facility (SCF)—allow
you to add and delete terminals as requirements change, to monitor activity on data
communication lines, and to diagnose problems on communication lines. You can
monitor both network lines and lines that connect terminals to the Tandem system.
In addition, the NETMON network utility program lets you monitor traffic through
a network and identify problems on network lines. For example, if traffic is too
heavy on certain lines or through a particular node, you can weight the factors used
to select paths between nodes.
■ System performance
MEASURE, a performance measurement tool, lets you measure CPU and disk
activity throughout the system. If traffic is uneven or too heavy, you might want to
move devices or processes from one processor to another or move files from one
disk to another disk. You might also want to add hardware to your system.
■ TMF environment
TMFCOM, the command interface to the Transaction Monitoring Facility (TMF),
allows you to monitor and control TMF, to perform online dumps of the
TRANSFER database files, and to recover the database files after a system failure.
■ TRANSFER database
The TRANSFER TCHECK utility locates and adjusts discrepancies in TRANSFER
data files. You can also run TCHECK to delete sessions and session-related folders
without examining any other data files.