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High Availability

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ALSO CALLED: Highly Available Computing, Data Availability, HA, High-availability, Availability
DEFINITION: In information technology, high availability refers to a system or component that is continuously operational for a desirably long length of time. Availability can be measured relative to "100% operational" or "never failing." A widely-held but difficult-to-achieve standard of availability for a system or product is known as "five 9s" (99.999 percent) availability.Since a computer system or a network  … 
Definition continues below.
High Availability Reports
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High Performance NAS
sponsored by BlueArc Corp.
WHITE PAPER: Read this special report that reviews current NAS trends including high-availability clustered storage to address growing storage needs and today's media-rich file environments and more.
Posted: 05 Nov 2009 | Published: 05 Nov 2009


Top points to achieving a fast ROI in Enterprise Backup and DR with Symantec, FalconStor and Hitachi Data Systems
sponsored by FalconStor Software
PODCAST: Disk-based backup systems fundamentally change the way we do backup and recovery. But the key is to treat disk as disk and not as tape. Solutions need to recognize the intelligent features of disk and take advantage of those features. This podcast explores how to leverage the advantages of disk for best possible backup performance and maximum ROI.
Posted: 04 Nov 2009 | Premiered: 04 Nov 2009


Maximizing Enterprise Backup and Dedupe Performance for Greater ROI
sponsored by FalconStor Software
WEBCAST: Disk-based backup systems fundamentally change the way we do backup and recovery. But the key is to treat disk as disk and not as tape. Solutions need to recognize the intelligent features of disk and take advantage of those features. This webcast explores how to leverage the advantages of disk for best possible backup performance and maximum ROI.
Posted: 04 Nov 2009 | Premiered: 04 Nov 2009


Deploying a BackUP system that won't break IT's Back.
sponsored by SonicWALL
WEBCAST: SonicWALL's award-winning solutions for the enterprise, distributed enterprise and SMB include network security, secure remote access, content security, backup and recovery, and policy and management technology.
Posted: 03 Nov 2009 | Premiered: 03 Nov 2009


"up.time 5" by uptime software - Free 30 Day Trial!
sponsored by uptime software inc.
TRIAL SOFTWARE: Deeply monitor all Virtual, Physical and Cloud based servers, applications, resources, and services from a single, unified dashboard with "up.time". Immediately cut costs and drive global performance and availability.
Posted: 29 Oct 2009 | Published: 29 Oct 2009


Windows Server® 2008 Hyper-V Technology Introduction
sponsored by Dell and Microsoft
DATA SHEET: Dell's Hyper-V Technology Introduction for Windows Server® 2008 is a rapid approach to the deployment and configuration of a Hyper-V and SystemCenter Virtual Machine Manager 2008 (SCVMM) based Proof of Concept (POC) into your pre-production test lab.
Posted: 29 Oct 2009 | Published: 29 Oct 2009


Case Study: DaimlerChrysler South Africa - Migrating Mission Critical Application Achieving Over 50% Cost Savings and Improving Service Levels
sponsored by Micro Focus, Ltd
CASE STUDY: In October 2003, DaimlerChrysler South Africa decided that significant cost savings could be achieved by migrating its mission critical systems onto a contemporary low cost platform and in the process remove the mainframe. This case study presents the challenges the company faced as well as the solution and benefits achieved.
Posted: 27 Oct 2009 | Published: 27 Oct 2009


Extending the Benefits of Virtualization to Remote Office and Branch Locations, Small to Medium Businesses and Web Hosters
sponsored by VM6 Software
WHITE PAPER: VM6 provides affordable software solutions to extend the benefits of enterprise-class virtualization to remote offices and branch locations (ROBO), small to medium businesses and web hosters.
Posted: 27 Oct 2009 | Published: 27 Oct 2009


Best Practices for Virtualizing Distributed Environments: Enterprise-Class Virtualization for Remote Office and Branch Office Infrastructures
sponsored by VM6 Software
WHITE PAPER: This whitepaper provides the 4 best practices that IT leaders of ROBO organizations need to consider when virtualizing their businesses, providing ROI tips and establishing a roadmap for reducing the Total Cost of Ownership for virtualizing the distributed ROBO environment.
Posted: 27 Oct 2009 | Published: 27 Oct 2009


Distributed IT Infrastructures: Alternative Approaches
sponsored by VM6 Software
WHITE PAPER: This whitepaper outlines the benefits derived and the costs associated with virtualization in the Remote Offices/Branch Offices, in the classic model versus the proposed model.
Posted: 27 Oct 2009 | Published: 27 Oct 2009


Reduce Downtime by 70% - Without Spending a Dime: Applying Best Practices of Successful IT Organizations
sponsored by Marathon Technologies
WHITE PAPER: Read this paper to learn Niel Nickolaisen's proven model for strategic and tactical alignment of IT with business objectives - enabling IT to do more for the business with less. By implementing all four components of Niel's model, IT can dramatically reduce system downtime and closely align their efforts and investments with business priorities.
Posted: 26 Oct 2009 | Published: 26 Oct 2009


Cost-effective Strategies for Building the Next-generation Data Center
sponsored by ZT Systems
WHITE PAPER: This white paper will discuss the forces behind the rise of flexible, cloud-like data center architectures; describe the hardware needs created by those new architectures; and show why custom servers from ZT Systems powered by AMD Opteron™ processors are an exceptional fit for these demanding new data center environments.
Posted: 23 Oct 2009 | Published: 23 Oct 2009


Solutions For Server Rooms
sponsored by APC
WHITE PAPER: The modular, easy-to-install solutions from APC by Schneider Electric allow you to implement an appropriate IT environment that meets your current and future needs, without breaking the bank in the process.
Posted: 23 Oct 2009 | Published: 23 Oct 2009


Solutions for Network Closets
sponsored by APC
WHITE PAPER: Convergence, consolidation, virtualization - today's IT trends have turned the network closet into a mission-critical environment. APC solutions give you the level of control, monitoring, and management that today’s more critical systems demand.
Posted: 23 Oct 2009 | Published: 23 Oct 2009


Solutions for High-Density Environments
sponsored by APC
WHITE PAPER: High-density (HD) zones enable new technologies and unlock the doors to data center efficiency. APC® by Schneider Electric lets you deploy an HD environment anytime, anywhere. Learn how you can achieve this with APC's HD solutions.
Posted: 23 Oct 2009 | Published: 23 Oct 2009


Security and Environmental Monitoring Solutions
sponsored by APC
WHITE PAPER: NetBotz protection brings a crucial layer of physical security to any IT environment—big or small—by constantly monitoring and protecting your IT assets from environmental threats and human error.
Posted: 23 Oct 2009 | Published: 23 Oct 2009


Build Effective and Highly Available Disaster Recovery Solutions Using Microsoft Virtualization
sponsored by Microsoft
WEBCAST: Does your organization have a reliable and cost-effective site recovery system? This webcast explores how site recovery tools along with virtualization enables IT pros to deliver secure application and data availability, implement site-wide disaster recovery and automate fail-over and fail back.
Posted: 21 Oct 2009 | Premiered: 21 Oct 2009


Get More Virtual: Protecting Microsoft Applications with Dell and VMware vSphere 4
sponsored by Dell, Inc.
WEBCAST: Watch this webcast to learn how to ensure application security and availability in your VMware environment. Discover how to provide quick recovery of applications and how to use automation for server application protection.
Posted: 20 Oct 2009 | Premiered: 20 Oct 2009


Fight the Spam Explosion with Software as a Service (SaaS)
sponsored by Webroot Software, Inc.
EGUIDE: Read this expert e-guide for information about the benefits of SaaS security, including cooling and high availability considerations as well as comparisons of appliance vs. services and SaaS vs. on-premise solutions.
Posted: 16 Oct 2009 | Published: 16 Oct 2009


What's New in Windows Server 2008 R2?
sponsored by Dell and Microsoft
DATA SHEET: The new Windows Server® 2008 R2 operating system provides a productive and cost-effective server platform with low-cost virtualization, power-saving capabilities, and a superior experience for end users. Read this data sheet to learn more!
Posted: 13 Oct 2009 | Published: 13 Oct 2009


eGuide: Mid-Market Guide to Architecting SQL Server for High Performance and 100% Uptime on a budget
sponsored by Dell, Inc.
EDITORIAL RESOURCE GUIDE: Read this expert E-Guide from Dell to learn key concepts that will help you architect your next SQL Server installation.
Posted: 09 Oct 2009 | Published: 09 Oct 2009


Mobility Management the ITIL and ITSM Way: An Enterprise BlackBerry, iPhone (and Beyond) Imperative
sponsored by BoxTone
WHITE PAPER: In this Handbook, you'll learn how Mobile User Management has emerged as the most effective application of ITSM leveraging ITIL to support mobile user connectivity and mobile application access.
Posted: 08 Oct 2009 | Published: 08 Oct 2009


Rethinking Virtualization Solutions with HP LeftHand P4000 SANs
sponsored by Hewlett-Packard Company
WHITE PAPER: HP LeftHand P4000 SAN Solutions provide optimized storage for your virtualized server environment, allowing your storage infrastructure to support virtual servers, including support for high-availability (HA) and disaster-recovery (DR) features in virtual environments.
Posted: 08 Oct 2009 | Published: 08 Oct 2009


PlateSpin Forge®: Plug In and Protect Server Workload
sponsored by Novell Inc.
WHITE PAPER: In the event of downtime, workloads can be rapidly powered on in the PlateSpin Forge recovery environment and continue to run as normal until the production environment is restored. PlateSpin Forge® ships with everything you need to begin protecting your servers straight out-of-the-box.
Posted: 01 Oct 2009 | Published: 01 Oct 2009


Best Practices Guide - Intel® Xeon® Edition: VMware Reference Configurations for Midsize Companies
sponsored by Sun Microsystems, Inc. and Intel Corporation
WHITE PAPER: This white paper proposes a spectrum of reference configurations using Sun servers based on Intel processors, the broad range of Sun storage systems and appliances, and the VMware suite of virtualization products to configure cost-effective information systems for these businesses.
Posted: 01 Oct 2009 | Published: 01 Oct 2009

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HIGH AVAILABILITY DEFINITION (continued): …  consists of many parts in which all parts usually need to be present in order for the whole to be operational, much planning for high availability centers around backup and failover processing and data storage and access. For storage, a redundant array of independent disks (RAID) is one approach. A more recent approach is the storage area network (SAN).Some availability experts emphasize that, for any system to be highly available, the parts of a system should be well-designed and thoroughly tested before they are used. For example, a new application program that has not been thoroughly tested … 
High Availability definition sponsored by SearchDataCenter.com, powered by WhatIs.com an online computer dictionary
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