NonStop Systems Introduction for H-Series RVUs

The Application Server Environment
NonStop Systems Introduction for H-Series RVUs— 540083-001
3-2
Built on NonStop Core Services
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Incorporating third-party applications and services into the ZLE framework
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Enabling efficient communications between the business systems and real-time
applications
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Managing and monitoring transactional access to the real-time data store.
HP has offered a succession of application server environments over the years. Each
has reflected the state-of-the-art technology of the times, and each has provided the
availability, scalability, and performance made possible by the underlying NonStop
infrastructure: SQL/MP or SQL/MX database, NonStop operating system, and the
Integrity NonStop server.
Built on NonStop Core Services
The primary goal of an Integrity NonStop server has remained basically unchanged
over the years. That goal is to provide a platform for the development of applications
and to execute those applications efficiently and reliably in an environment that
consists of multiple applications distributed across multiple processors and a large,
high-performance database that must sustain heavy transaction volumes. HP has
provided several models for fulfilling this goal.
Each application server environment has enabled users to develop and run high-
performance, high-volume applications on Integrity NonStop servers. Each
environment was carefully designed to satisfy all the sophisticated demands placed on
it, from the early days of online transaction processing to the current days and even
heavier demands of the zero latency enterprise. Each environment, although differing
from the others in many respects, is built on a common base consisting of:
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A relational database management system that supports high-speed access to
data and updates of the data. This role is fulfilled by the SQL/MX core service.
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A transaction management facility that preserves the integrity of data during
multiple, concurrent transactions that change the data. This function is handled by
the TMF core service.
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An operating system that performs low-level tasks such as messaging, file
management, memory management, and so on. The NonStop operating system
performs these functions.
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An Integrity NonStop server that provides a fault tolerant, high performance, and
highly scalable hardware platform for hosting the software components.
Each of these functional areas plays an important role in the smooth and rapid
development and execution of real-time applications and services. HP addresses each
of these areas with one or more unique products. Figure 3-1 on page 3-3 shows the
major components of the application server environment.