Introduction to NonStop Operations Management

Overview of NonStop Operations Management
Introduction to NonStop Operations Management–125507
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Tandem NonStop Systems and Software
Reducing or Eliminating Unplanned Outages
Unplanned outages occur when system or application down time is caused by a
problem situation such as faulty hardware, operator error, or disaster. An example of
such a problem is an application change that makes the application unusable by
introducing unexpected problems. You can reduce or eliminate unplanned outages by:
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Predicting and then preventing problems before they occur
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Quickly recovering from problems
Section 6, “Problem Management,” provides general guidelines for predicting,
preventing, and recovering from unplanned outages in an operations environment.
Section 10, “Contingency Planning,” provides guidelines and suggestions for disaster
prevention and recovery.
For comprehensive information about managing the problem environment and for
information about problem management tools provided by Tandem, refer to the
Availability Guide for Problem Management.
Tandem NonStop Systems and Software
Through the optimal use of Tandem NonStop systems and software, you can fulfill your
operations management goals and service-level agreements.
Tandem NonStop Systems
Tandem NonStop systems help you achieve your objectives because Tandem NonStop
systems:
•
Are highly reliable. The fault-tolerant, multiprocessor architecture of Tandem
NonStop systems helps you keep a system running through a malfunction or single
point of failure. For example, if one processor goes down, other processors can
immediately take over the downed processor’s functions while continuing with their
own processing.
•
Preserve the integrity of databases during processing (with NonStop Transaction
Manager/MP [TM/MP] and mirrored disks).
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Are engineered so that they can grow and change in response to business needs.
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Provide a flexible processing environment that allows you to add terminals,
applications, and databases as needed while the system is running.
•
Provide geographic independence. You can move easily from a single system to a
network of systems. You can add systems in the same room, the same city, or across
the world.
Though Tandem NonStop systems are fault-tolerant, a fault-tolerant operation requires
more than fault-tolerant computers and software. If your goal is to create a completely