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Fault Tolerance

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ALSO CALLED: Fault-tolerance, Fault Tolerant, FT
DEFINITION: Fault-tolerant describes a computer system or component designed so that, in the event that a component fails, a backup component or procedure can immediately take its place with no loss of service. Fault tolerance can be provided with software, or embedded in hardware, or provided by some combination.In the software implementation, the operating system provides an interface that allows a programmer  … 
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Fault ToleranceReports
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E-Guide: Requirements for Virtualizing Exchange Server 2010
sponsored by SearchDataCenter.com
EGUIDE: This expert e-guide provides you with everything you need to know about virtualizing Exchange 2010. Discover the hardware, storage, memory, and availability requirements you will have to meet as well as the steps you must take before getting started with this process.
Posted: 15 Aug 2012 | Published: 15 Aug 2012

SearchDataCenter.com

Hardest Problems in Data Management
sponsored by VMware, Inc.
WHITE PAPER: Read this paper to learn how to enable a fast, scalable, fault-tolerant distributed foundation for data management that runs dynamically across the many-machine, many-core, memory-based computing topologies that today's organizations are assembling from existing IT resources and pay-as-you-go clouds.
Posted: 10 Feb 2012 | Published: 10 Feb 2012

VMware, Inc.

Advanced Virtualization E-Book: Essentials of High-Availability Planning
sponsored by Dell, Inc. and AMD
EBOOK: This e-book provides planning and testing tips for establishing high availability in a virtual environment, plus highlights effective management tools and procedures currently available.
Posted: 22 Nov 2010 | Published: 22 Nov 2010

Dell, Inc. and AMD

Implement Money and Time Savings Strategies
sponsored by CCSS
WHITE PAPER: The powerful functionality and continued development of the QSystems Management Suite is driven by our commitment to meet the ever-changing, real-world needs of our customers. Learn more about money and time saving strategies available for your business by reading these examples.
Posted: 27 Apr 2010 | Published: 27 Apr 2010

CCSS

Calculating Total Power Requirements for Data Centers
sponsored by APC by Schneider Electric
WHITE PAPER: Assessing the electrical power required to support and cool the critical loads within the data center is essential in planning for the development of a facility that will meet the end user's availability expectations. Read this white paper to learn how.
Posted: 01 Apr 2010 | Published: 01 Oct 2007

APC by Schneider Electric

Webinar: Autoscaling Server Arrays
sponsored by RightScale
WEBCAST: This webinar focuses on how the RightScale Platform handles autoscaling with specific instructions and a live demo.
Posted: 01 Mar 2010 | Premiered: Mar 1, 2010

RightScale

Performing Effective MTBF Comparisons for Data Center Infrastructure
sponsored by APC by Schneider Electric
WHITE PAPER: Mean Time Between Failure (MTBF) is often proposed as a key decision making criterion when comparing data center infrastructure systems. This paper explains how MTBF can be effectively used as one of several factors for specification and selection of systems, by making the assumptions explicit.
Posted: 28 Jan 2010 | Published: 28 Jan 2010

APC by Schneider Electric

Reliability Analysis of the APC Symmetra MW Power System
sponsored by APC by Schneider Electric
WHITE PAPER: MTechnology, Inc. (MTech) performed a quantitative reliability analysis of the APC Symmetra MW UPS. The study used techniques of Probabilistic Risk Assessment (PRA) to calculate the likelihood of over 680,000 potential failure modes.
Posted: 28 Jan 2010 | Published: 28 Jan 2010

APC by Schneider Electric

Under the Hood of Your New Server
sponsored by Dell, Inc. and Microsoft
WHITE PAPER: Even though some network servers look very much like the standalone computers that fill your office, they play a very different role in your business than desktop PCs do, and therefore their design is very different under the hood. Take a tour of the components that give a server the power it needs to handle your tough workload.
Posted: 10 Dec 2009 | Published: 10 Dec 2009

Dell, Inc. and Microsoft

Quantum esXpress Backup for VMware
sponsored by Quantum Corporation
DATA SHEET: Quantum esXpress™ backup software combined with a Quantum DXi®-Series data deduplication system provides a comprehensive and scalable, yet easy to use data protection solution for VMware® environments.
Posted: 08 Oct 2009 | Published: 01 Sep 2009

Quantum Corporation

Optimizing Citrix XenApp High Availability - A New Approach
sponsored by Marathon Technologies
WHITE PAPER: Many businesses today are delivering applications to users as an on-demand service. This reduces the cost of application management and can improve application and data security. This white paper explores what availability really means, and how availability correlates to RTO and RPO baselines.
Posted: 10 Sep 2009 | Published: 10 Sep 2009

Marathon Technologies

Create Fault-Tolerant SQL Server 2008 Installations -- Rely on SQL Server 2008 Features to Protect Data
sponsored by Dell, Inc. and Intel®
WHITE PAPER: Read this paper to determine how best to protect your SQL environment when running SQL Server on Dell PowerEdge servers.
Posted: 01 Sep 2009 | Published: 01 Sep 2009

Dell, Inc. and Intel®

VMware Fault Tolerance Recommendations and Considerations on VMware vSphere 4
sponsored by HP, Intel, & VMware
WHITE PAPER: As dependencies on computing increase, ensuring that applications are highly available becomes more critical. This paper gives VMware fault tolerance recommendations and considerations on VMware vSphere 4.
Posted: 10 Aug 2009 | Published: 07 Aug 2009

HP, Intel, & VMware

Integrated Infrastructure and Performance Management for Virtualized Environments
sponsored by CA Technologies.
WHITE PAPER: Enterprises, government agencies and service providers are increasingly employing virtualized environments to decrease costs, consolidate data center space and reduce environmental impacts. This paper describes a comprehensive set of CA tools for managing virtual environments.
Posted: 29 Apr 2009 | Published: 01 Apr 2009

CA Technologies.

Modular Systems: The Evolution of Reliability
sponsored by APC by Schneider Electric
WHITE PAPER: Modularity is an established technique for organizing and simplifying a complex system. In data centers, modular design has already taken root in new fault-tolerant architectures for servers and storage systems. The mission of this paper is to illustrate how modularity delivers a profound reliability benefit: fault tolerance
Posted: 29 Apr 2009 | Published: 01 Jan 2005

APC by Schneider Electric

System Grounding and Ground-Fault Protection Methods for UPS-Supplied Power Systems
sponsored by Square D Critical Power Competency Center
WHITE PAPER: This paper explores the nature of circulating currents in UPS-supplied power systems when solid system grounding is employed and the use of modified-differential ground fault protection to eliminate the effects of these circulating currents.
Posted: 12 Feb 2009 | Published: 12 Feb 2009

Square D Critical Power Competency Center

HP Non-Stop Multi-core Architecture
sponsored by Hewlett-Packard Company
WHITE PAPER: Learn about the new HP Integrity NonStop BladeSystem, which delivers a highly available, fault-tolerant, linearly scalable system that also dramatically increases performance, reduces costs and complexities, saves floor space...
Posted: 23 Sep 2008 | Published: 23 Sep 2008

Hewlett-Packard Company

Seven Secrets to 24x7 Exchange Availability
sponsored by Marathon Technologies
WHITE PAPER: Read this paper to learn the seven secrets to 24x7, disaster-tolerant Exchange and get step-by-step tips on how to implement an Exchange environment with zero lost data and continuous application availability.
Posted: 10 Sep 2008 | Published: 10 Sep 2008

Marathon Technologies

Building a Virtual Infrastructure from Servers to Storage
sponsored by NetApp
WHITE PAPER: This technical report demonstrates how integrating Network Appliance technologies in a virtual infrastructure can solve the unique challenges inherent with ESX deployments in the areas of storage utilization, fault tolerance, and backups.
Posted: 17 Jan 2008 | Published: 01 Oct 2006

NetApp

Comparing UPS System Design Configurations
sponsored by APC by Schneider Electric
WHITE PAPER: An Uninterruptible Power Supply (UPS) is often the best way to avoid downtime, but choosing a system can be a challenge. This white paper explains the five most common UPS configurations and the benefits and limitations of each.
Posted: 24 Oct 2007 | Published: 01 Jan 2005

APC by Schneider Electric

Understanding the Network Impact on Application Load Testing
sponsored by Shunra Software
WHITE PAPER: Delivering an application without considering the target network is not sufficient for load testing. Read this white paper that details a new solution for testing to make sure that application performance is optimal across the board.
Posted: 22 Oct 2007 | Published: 22 Oct 2007

Shunra Software

Stratus and VMware Bring Continuous Availability to VMWare Virtualization
sponsored by Stratus Technologies
PRODUCT LITERATURE: For the growing numbers of organizations adopting VMware virtualization, this paper provides welcome news. Download and discover why bringing industry-leading uptime to your virtualized environment is simpler than ever.
Posted: 19 Sep 2007 | Published: 01 Sep 2007

Stratus Technologies

Fault Tolerance in a Virtual World
sponsored by Stratus Technologies
WHITE PAPER: As data centers adopt virtualization, fault-tolerance becomes more important. Download this white paper to learn about fault tolerance in a virtual world and how it can reduce overall cost of downtime.
Posted: 22 Aug 2007 | Published: 01 Aug 2007

Stratus Technologies

Understanding Bottlenecks and Bandwidth Management
sponsored by CA Technologies.
WHITE PAPER: This searchNetworking.com eGuide is designed to assist network engineers and managers in understanding the potential causes and cures of bottlenecks and traffic issues.
Posted: 06 Aug 2007 | Published: 23 Nov 2006

CA Technologies.

SolarWinds Engineer's Toolset v9
sponsored by SolarWinds, Inc.
TRIAL SOFTWARE: SolarWinds' award-winning Engineer's Toolset delivers 48 applications designed to monitor, discover, manage, and troubleshoot the network from your desktop.
Posted: 16 Jul 2007 | Premiered: 01 Jul 2007

SolarWinds, Inc.
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FAULT TOLERANCE DEFINITION (continued): … Fault-tolerant describes a computer system or component designed so that, in the event that a component fails, a backup component or procedure can immediately take its place with no loss of service. Fault tolerance can be provided with software, or embedded in hardware, or provided by some combination.In the software implementation, the operating system provides an interface that allows a programmer to "checkpoint" critical data at pre-determined points within a transaction. In the hardware implementation (for example, with Stratus and its VOS operating system), the programmer does not need to be aware of the fault-tolerant capabilities of the machine.At a hardware level, fault tolerance is achieved by duplexing each hardware component. Disks are mirrored. Multiple processors are "lock-stepped" together and their outputs are compared for correctness. When an anomaly occurs, the faulty component is determined and taken out of service, but the machine continues to function as usual.
Fault Tolerance definition sponsored by SearchCIO-Midmarket.com, powered by WhatIs.com an online computer dictionary

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