By Kailash Jayaswal
Achieve a realistic wisdom of information heart concepts
To create a well-designed info heart (including garage and community structure, VoIP implementation, and server consolidation) you want to comprehend quite a few key options and applied sciences. This publication explains these elements in a manner that smoothes the trail to implementation and administration. even if you wish an creation to the applied sciences, a refresher path for IT managers and information heart team of workers, or an extra source for complicated learn, you'll locate those instructions and options offer an outstanding origin for development trustworthy designs and safe information middle policies.
* comprehend the typical factors and excessive bills of provider outages
* how to degree excessive availability and accomplish greatest levels
* layout an information heart 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 a knowledge middle surroundings that's person- and manager-friendly
* find out how excessive availability, clustering, and catastrophe restoration options should be deployed to guard serious information
* tips on how to use a unmarried community infrastructure for IP information, voice, and garage
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Additional info for Administering Data Centers: Servers, Storage, and Voice over IP
Some equipment such as small servers and storage devices are placed in racks. Large equipment such as EMC Symmetrix Storage Array (height, width, and depth of 75 × 9 × 36 inches), IBM Enterprise Storage Server (also known as Shark, with height, width, and depth of 75 × 55 × 36 inches), and Sun Fire 6800 Server are not designed to fit within racks but rather stand alone on the floor. Rack dimensions, as shown in Figure 3-1, vary in size. The external height, width, and depth of a typical full-height rack are 84, 22, and 30 inches; internal dimensions are 78, 19, and 28 inches.
Backups must still be used to protect against data corruption, accidentally deleted files, and system crashes that damage the operating system. Level 3: Fault-Tolerant Servers A fault-tolerant server provides a fully replicated hardware design that allows uninterrupted service in the event of a component failure. Most components have an active redundant partner. The recovery time or performance loss caused by a component failure is close to zero, and all memory-based information and disk contents are preserved.
Like power, the HVAC system is very difficult to retrofit. Therefore, the HVAC system must have enough cooling capacity to meet present and future needs. Cooling requirements are measured in British thermal units (BTUs) per hour. The HVAC manufacturer provides this. What you must know is the combined BTU-per-hour requirement for all of the equipment in the data center. For example, an IBM ESS Storage Subsystem requires 16,000 BTUs per hour. 29 30 Chapter 3 Add the BTUs of all equipment. Let’s assume that is 200,000 BTUs.
Administering Data Centers: Servers, Storage, and Voice over IP by Kailash Jayaswal