By Kailash Jayaswal
Achieve a realistic wisdom of information middle concepts
To create a well-designed facts middle (including garage and community structure, VoIP implementation, and server consolidation) you want to comprehend numerous key ideas and applied sciences. This ebook explains these components in a manner that smoothes the trail to implementation and administration. no matter if you would like an advent to the applied sciences, a refresher direction for IT managers and information middle group of workers, or an extra source for complex examine, you'll locate those guidance and suggestions supply an effective beginning for construction trustworthy designs and safe info heart policies.
* comprehend the typical motives and excessive charges of provider outages
* how you can degree excessive availability and accomplish greatest levels
* layout a knowledge middle utilizing optimal actual, environmental, and technological elements
* discover a modular layout for cabling, issues of Distribution, and WAN connections from ISPs
* See what has to be thought of whilst consolidating facts heart resources
* extend your wisdom of most sensible practices and security
* Create an information heart surroundings that's person- and manager-friendly
* find out how excessive availability, clustering, and catastrophe restoration ideas will be deployed to guard serious information
* how to use a unmarried community infrastructure for IP info, voice, and garage
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Extra resources for Administering Data Centers: Servers, Storage, and Voice over IP
23 PA R T Two Data Center Architecture In This Part Chapter 3: Data Center Requirements Chapter 4: Data Center Design Chapter 5: Network Infrastructure in a Data Center Chapter 6: Data Center Maintenance Chapter 7: Power Distribution in a Data Center Chapter 8: Data Center HVAC CHAPTER 3 Data Center Requirements Nothing will ever be attempted if all possible objections must first be overcome. — Samuel Johnson Most of the principles and lessons learned for designing and building data centers have accrued over the last 50 or so years.
That doubles the loss to $400,000. If you estimate the loss of revenue to a company whose sales rely on server and application availability, the lost revenue is calculated using the following equation: Lost Gross Annual Revenue Percentage Hours of Revenue = c Annual Business Hoursm # Impact # Downtime The first two elements of the equation provide the revenue generated per hour. The percentage impact allows you to scale the hourly revenue based on whether the lost customers can be partially or entirely recovered, or whether they would cause more damage by creating negative publicity among those who never witnessed the downtime firsthand.
Environmental factors that can cause downtime are rare, but they happen. Power fails. Fires blaze. Floods gush. The ground below shakes. In 1998, the East Coast of the United States endured the worst hurricane season on record. At the same time, the Midwest was plagued with floods. Natural disasters occur mercurially all the time and adversely impact business operations. And, to add to all that, there are disasters caused by human beings, such as terrorist attacks. The best protection is to have one or more remote, mirrored disaster recovery (DR) sites.