Introduction

“If your company's High Availability requirements are well understood, the potential benefits gained by applying the correct High Availability solution can be enormous! Applying the wrong solution or not understanding your company's high availability needs could cause your company to go out of business!” IT Forum, Atlanta, GA—Paul Bertucci [November, 2003]

Five 9s

Downtime (system unavailability) directly translates to loss of profit, productivity, and customer good will—plain and simple. If your current or planned applications are vulnerable to downtime problems—or you are unsure of the potential downtime issues—then this book is aimed at you. Is your business at or nearing a requirement to be “highly available” or “continually available” ...

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