Availability Guide for Problem Management

Monitoring Objects
Availability Guide for Problem Management–125509
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Tandem Object Monitoring Facility (OMF)
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Process statistics, such as
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Busiest processes
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Percent processor busy for each process
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Messages sent and received
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Receive queue length
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Average memory pages used
NSX and the Tandem Object Monitoring Facility (OMF)
NSX and OMF have been enhanced to provide an integrated, network-wide view of both
the performance and the operational status of the objects in a Tandem network.
One significant benefit of the intercommunication between NSX and OMF is the
formation of a central database repository that provides a history of both the
performance and operational status of system objects such as processors, processes, and
Expand processes.
Although NSX and OMF can still operate independently, the full benefit of both
subsystems is best realized when they operate together.
Tandem Object Monitoring Facility (OMF)
OMF monitors objects such as processors, disks, files, and processes within the Tandem
environment. OMF monitors objects for peripherals or subsystems, according to the
object configuration stored in and maintained by OMF.
OMF provides an improved application availability with less direct operator effort. It
periodically checks the status of configured objects and compares the status to a
specified state, without direct operator intervention. If the status is not that specified, the
abnormal condition is reported to the operator. An EMS event message can then be
created and routed to a local system EMS collector when a change in state is detected.
These messages can be displayed on an operations console and integrated with other
Distributed Systems Management (DSM) applications to automate and improve system
operations, for example, NonStop NET/MASTER.
Figure 5-5 illustrates a typical configuration for monitoring objects with OMF.
OMF and Tandem Network Statistics Extended (NSX)
When combined with the Tandem Network Statistics Extended (NSX) product, OMF
provides a network-wide view of the operational status of the objects in a Tandem
network (in a graphical user interface).