Performance Assurance for IT Systems - King, Brian

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Résumé :
Performance Assurance for IT Systems emphasizes the importance of addressing performance and technology-related issues from the feasibility and bid stages. It promotes the concept of Performance Assurance throughout the entire system lifecycle, covering technology, relevant processes, and people-related topics. The book consists of two major parts: Part I covers the processes deployed throughout the system lifecycle, including the choice of technologies, client requirements, sizing, stress testing, and capacity management; Part II provides a technology foundation made up of brief primers on hardware and software technologies, discussing key factors that influence performance and help management make informed decisions on technical risk.

Sommaire:
INDIVIDUAL AREAS OF INTEREST. Preparing for the challenge. Caveat emptor. Lies, damned lies, and benchmarks. Non-functional requirements and solutions. Hardware sizing: The crystal ball gazing act. Bid logistics. Designing for performance, scalability, and resilience. Awareness of queues. Non-functional acceptance. Post-production. Softer issues. So what? TECHNOLOGY FOUNDATION. Introduction to technology tasters. Operating systems. CPU basics. Memory. Hard disk basics. Server infrastructure. Multiprocessors (shared memory). Hard disk: Fibre Channel, SAN and NAS. File access basics. Relational database basics. Back-end server clusters. Network basics. Firewalls. Server load balancing. Web server and cache server. LDAP server. Modern server-side development technologies.