Availability Guide for Application Design

What Is Application Availability?
Availability Guide for Application Design—525637-004
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Availability and HP Products
recommendations for improving system balancing, resource utilization, and application
performance.
Performance Review and Analysis
This service offers a more comprehensive alternative to the System Performance
Audit. We evaluate your NonStop environment's use of system resources such as
cache, disk I/O balancing, CPU utilization, and memory pressure; recommend changes
to be implemented by your team; and analyze the changes' impact. A comprehensive
report details actions to correct problems and improve performance.
NonStop System Security Review
Detects and analyzes security weaknesses not apparent in network scanning, and
suggests how you can address them.
Environmental and Site Audit
An in-depth assessment of factors such as air conditioning, electrical power,
grounding, electromagnetic waves, and lightning risks. A detailed report helps you
prioritize changes.
Mission Critical Partnership
This comprehensive ongoing service gives you a fully customized plan for sustaining
high levels of availability over time. HP Services availability experts work closely with
you to reduce risks and proactively prevent problems. You receive a set of proactive
sustaining services as well as a reactive support agreement covering your NonStop
system and software.
System Management Services
Choose from a suite of consulting and support services to streamline your operations,
supplement your in-house staff, and meet your unique management objectives.
Options range from short-term assistance with specific tasks, to ongoing
supplementation of your IT staff, to full system management outsourcing of your entire
NonStop environment.
Availability and HP Products
The following tables list the HP products that help you to keep applications always
available:
•
Table 1-1 on page 1-27 lists the system-level products. Section 2, Overview of
Server and Network Fault Tolerance, provides more information about these
products.
•
Table 1-2 on page 1-28 lists the products related to data protection. Section 4, Data
Protection and Recovery, provides more information about these facilities.