Performance Assurance for IT Systems

Overview

-Promotes the approach of addressing performance-related issues early in the system lifecycle to minimise performance tuning and expensive design rework Provides advice on the prudent selection of hardware and software products. -Discusses the issues that surround the accuracy and validity of both vendor and in-house benchmarks. -Focuses on approaches to hardware sizing early in the system lifecycle. -Outlines design principles and techniques to ensure satisfactory performance and system scalability. -Includes assessments of the key performance

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Performance Assurance for IT Systems

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Overview

-Promotes the approach of addressing performance-related issues early in the system lifecycle to minimise performance tuning and expensive design rework Provides advice on the prudent selection of hardware and software products. -Discusses the issues that surround the accuracy and validity of both vendor and in-house benchmarks. -Focuses on approaches to hardware sizing early in the system lifecycle. -Outlines design principles and techniques to ensure satisfactory performance and system scalability. -Includes assessments of the key performance factors across a range of hardware and software technologies. The emphasis in this book is on pre-empting performance and scalability problems in production systems by tackling the issues during the early stages of the system lifecycle. It shows how to reduce technical risk, thereby helping to ensure that service level requirements can be met, and thus saving costly rework, redevelopment, and purchases of additional equipment. It includes discussions on the non-functional aspects of IT procurements from the perspective of both the client and the bidders. The watchword throughout is on an approach that is both cost-effective and "fit for purpose", necessary requirements in the modern age when there is increasing pressure to deliver in ever shorter timescales. Performance Assurance for IT Systems is a comprehensive, readable guide to the approaches and techniques for addressing IT performance and related technology issues throughout the system lifecycle. Written by an industry expert with many years of experience in addressing performance and technology issues on a wide variety of systems, the text is loaded with practical advice, easily applied techniques, and useful reference material. It is valuable for a range of IT professionals, including Performance Analysts, Technical Architects, Designers, and IT Managers who are involved in the assessment of technical risk.

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Product Details

  • ISBN-13: 9780849327780
  • Publisher: Taylor & Francis
  • Publication date: 8/12/2004
  • Pages: 376
  • Product dimensions: 6.40 (w) x 9.50 (h) x 0.97 (d)

Table of Contents

INDIVIDUAL AREAS OF INTEREST
Preparing for the Challenge
Abstract
Introduction
In the Beginning
The Need to Address New Applications
Definition of Performance
The Required Skills
Performance Assurance Within a Project Lifecycle
Summary

Caveat Emptor (Let the Buyer Beware)
Abstract
Software Product Lifecycle
Hardware Product Lifecycle
Marketing
Technical Reviews of Products

Lies, Damned Lies and Benchmarks
Abstract
Introduction
Industry Benchmarks
Vendor Benchmarks
Independent Benchmarking
In-House Benchmarking
"Tricks of the Trade"
Using Benchmarks

Non-Functional Requirements and Solutions
Abstract
Introduction
The Problems
Sizing Information
Performance Requirements
Hardware Sizing
Hardware Deployment and Scalability
Availability
The Need for Business Continuity
Summary

Hardware Sizing: The Crystal Ball Gazing Act
Abstract
The Challenge
Summary of Hardware Sizing Approaches
High Level Sizing Method
Batch Processing Considerations
Sizing Software Products
Sizing Reviews
Deliverables
Hardware Sizing Revisited
Change
Summary

Bid Logistics
Abstract
The Challenge
Bid Qualification
The Political Dimension
Teaming
Dealing with Hardware and Software Vendors
Iterative Sizing
Bid Reviews
Prototypes
BAFO
Documentation
Summary

Designing for Performance, Scalability, and Resilience
Abstract
Initial Observations
Basic Design Principles
General Thoughts and Guidelines
Coding and Testing
Summary

Awareness of Queues
Abstract
Queues
Locks
Tackling Delays
Analytic and Simulation Modeling Tools
Alternative Approaches
Summary

Non-Functional Acceptance
Abstract
The Issues
Stress Testing
Soak Testing
Operational-Readiness Testing
Summary

Post-Production
Abstract
Introduction
Classic Capacity Management
A Minimalist Approach to Capacity Management

Softer Issues
Abstract
Introduction
Devil's Advocate and Seductive Technology
Communication
Awareness of Cost
Awareness of Time
Over-Engineering
Smoke-Filled Rooms
Team Balance
Multi-Tasking
Client Responsibilities
Technical Postmortem
All-Rounders

So What?
"My Way"
Informed Approach

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

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