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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 AvailabilityReports
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Eliminating End User and Application Downtime:  Protecting Mission-Critical Multi-Tier Business Applications with Neverfail and Virtualization
sponsored by Neverfail
WHITE PAPER: This white paper outlines many of the common deployment scenarios that such organizations face and describes how Neverfail Continuous Availability and virtualization can be used to deliver a more complete, consistent and cost effective availability solution for mission-critical, business applications.
Posted: 17 Jan 2011 | Published: 17 Jan 2011

Neverfail

Presentation Transcript: Implementing Cloud Ready Data Management Strategy
sponsored by VMware, Inc.
PRESENTATION TRANSCRIPT: Today's modern, web applications require elasticity, scalability and flexibility. Learn how a cloud-ready approach to data management can help reduce database bottlenecks and improve application performance and availability. Read this presentation transcript and learn how to achieve high performance for your apps.
Posted: 14 Jan 2011 | Published: 14 Jan 2011

VMware, Inc.

Leveraging Clustered File System Software to Deliver Superior Application Availability
sponsored by Symantec Corporation
WHITE PAPER: Transactional application availability is more important than ever to businesses in a globalized economy. This Vendor Spotlight examines the various architectural approaches to ensuring application uptime and availability, particularly a clustered file system approach with clustered services.
Posted: 28 Dec 2010 | Published: 28 Dec 2010

Symantec Corporation

Virtualizing Business-Critical Applications With Confidence
sponsored by Symantec Corporation
WHITE PAPER: Within any business, a number of applications exist that are critical to the success of the business. As a result, these applications and the systems they run on require a higher level of availability. The trade off with increasing application availability is an additional cost in terms of redundant hardware and complexity.
Posted: 27 Dec 2010 | Published: 27 Dec 2010

Symantec Corporation

Oracle Database 11g Release 2 High Availability
sponsored by Oracle Corporation
WHITE PAPER: Read this white paper to learn about how Oracle Database 11g Release 2 protects your business from all common causes of unplanned downtime and planned downtime, including human error.
Posted: 20 Dec 2010 | Published: 20 Dec 2010

Oracle Corporation

Disaster Recovery with ETERNUS DX – The Data Safe – and VMware SRM
sponsored by Fujitsu America, Inc.
WHITE PAPER: This paper shows the way to protect data and business, where hardware is only one factor. The other factor is the proof that in a worst case scenario the protection works well. The challenge is to test that protection in near real-life situations but without impact on business production.
Posted: 06 Dec 2010 | Published: 06 Dec 2010

Fujitsu America, Inc.

Calculate Your Savings with the Dynamic Provisioning Savings Calculator
sponsored by Hitachi Data Systems
ASSESSMENT TOOL: Provisioning storage from a virtual pool not only reduces administration costs by cutting the time to provision new storage, but also improves application availability by reducing the downtime needed for storage provisioning. Enter a few details about your storage environment to calculate your potential savings now.
Posted: 02 Dec 2010 | Published: 02 Dec 2010

Hitachi Data Systems

Building a Highly-Available Enterprise Network with Juniper Networks EX Series Ethernet Switches
sponsored by Juniper Networks, Inc.
WHITE PAPER: Globalization and network convergence are driving the need for non-stop operations. Juniper Networks EX Series Ethernet Switches are designed for 99.999% uptime.
Posted: 23 Nov 2010 | Published: 22 Nov 2010

Juniper Networks, Inc.

VMware and Dell Solutions for Small to Medium Business: Ensuring Rapid, Reliable and Affordable Disaster Recovery
sponsored by Dell and VMware
WHITE PAPER: Affordable high availability and disaster recovery solutions are critical to the survival of all SMBs in the event of a disaster. Building on years of helping SMBs protect their information, VMware and Dell provide cost-effective and robust data protection, disaster recovery, and high availability solutions.
Posted: 22 Nov 2010 | Published: 22 Nov 2010

Dell and VMware

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

Email as Part of a Business Continuity Strategy: Why always-on-business requires always-on-email
sponsored by Mimecast
WHITE PAPER: The paper looks at the general approaches available to ensure email continuity from a high level and the implications of deploying each strategy on infrastructure, budget, people and resilience.
Posted: 22 Nov 2010 | Published: 22 Nov 2010

Mimecast

Getting Started with Microsoft Windows Server 2008 Hyper-V on Dell Servers
sponsored by Dell and Microsoft
WHITE PAPER: This article provides an introduction to Hyper-V virtualization, discusses the overall architecture and underlying technologies, and offers guidance on best practices for deployment on Dell PowerEdge servers.
Posted: 19 Nov 2010 | Published: 19 Nov 2010

Dell and Microsoft

Cost-Effective Remote Office / Branch Office (ROBO) Virtualization with HP StorageWorks P4000 Virtual SAN Appliance (VSA)
sponsored by HP & Intel®
IT BRIEFING: Many organizations inadvertently place critical information at risk because deploying physical SANs at each of their remote locations can be cost prohibitive. This does not have to be the case. HP has an approach that can affordably provide high availability (HA) and disaster recovery (DR) for each of your remote sites.
Posted: 19 Nov 2010 | Published: 19 Nov 2010

HP & Intel®

Presentation Transcript: Virtualization 101 - Part 1 Virtualization Overview
sponsored by Dell and VMware
PRESENTATION TRANSCRIPT: In this presentation transcript, learn how virtualization can benefit your disaster recovery and high availability strategy. Discover the differences between physical and virtual environments and learn about architectural considerations to support virtualization.
Posted: 18 Nov 2010 | Published: 18 Nov 2010

Dell and VMware

Virtualizing Business-Critical Applications With Confidence
sponsored by Symantec Corporation
WHITE PAPER: Within any business, a number of applications exist that are critical to the success of the business. As a result, these applications and the systems they run on require a higher level of availability. The trade off with increasing application availability is an additional cost in terms of redundant hardware and complexity.
Posted: 15 Nov 2010 | Published: 15 Nov 2010

Symantec Corporation

SMB Guide to Continuous Operations
sponsored by CA Technologies.
WHITE PAPER: SMBs can’t afford not to have a plan for continuous operations, especially when it comes to the computer systems, applications and data the business depends on to keep going — and growing. This paper highlights some of the issues around implementing SMB business continuity practices and provides guidance on developing an effective BC strategy.
Posted: 08 Nov 2010 | Published: 08 Nov 2010

CA Technologies.

EMC Virtual Infrastructure for Microsoft and Oracle Applications - Enabled by EMC CLARiiON and VMware Vsphere 4
sponsored by VMware, Inc.
PRODUCT REVIEW: In a virtual environment, determining the best way to balance the load across access paths traditionally adds another layer of complexity to the environment. Learn about how EMC has the experience for designing successful solutions within VMware environments to help maximize the value of your data center environment.
Posted: 02 Nov 2010 | Published: 01 Aug 2009

VMware, Inc.

Intelligent File Virtualization with F5 ARX
sponsored by F5 Networks
WHITE PAPER: Intelligent file virtualization resolves this dilemma in a simple and effective manner. This white paper introduces the ARX intelligent file virtualization solution. It also discusses the key applications and benefits of this innovative technology.
Posted: 27 Oct 2010 | Published: 27 Oct 2010

F5 Networks

Exchange Insider E-Zine - Volume 5: When Disaster Strikes in Exchange Server 2010
sponsored by Google
EZINE: Volume 5 of the Exchange Insider e-zine looks at how Exchange Server 2010’s database availability groups can ease an administrator’s backup and disaster recovery stress. Also learn how Forefront Protection 2010 can help defend Exchange 2010 servers from spam and malware attacks, and best practices for email archiving and e-discovery.
Posted: 27 Oct 2010 | Published: 27 Oct 2010

Google

RIM BlackBerry® Enterprise Server on VMware® Virtual Infrastructure
sponsored by VMware, Inc.
WHITE PAPER: VMware and RIM have worked together over the past two-plus years to provide official support of Blackberry Enterprise Server (BES) solutions on VMware virtual infrastructure. In this white paper, learn about the best practices for running BlackBerry® Enterprise Server on VMware® Infrastructure 3 or VMware vSphere™ 4.
Posted: 26 Oct 2010 | Published: 01 Feb 2010

VMware, Inc.

IPAM Intelligence: All Road Leads To Proteus
sponsored by BlueCat
WHITE PAPER: As IPAM evolves from a simple marriage between DNS and DHCP services, its definition cannot be limited to simply the benefits derived from dynamically linking DNS and DHCP functionality together. IPAM transcends this marriage to include features and functions shaped by this new requirement in an age of dynamic IP address data.
Posted: 25 Oct 2010 | Published: 25 Oct 2010

BlueCat

SparkPeople Eliminates Bottlenecks and Trims Four Hours per Week from Heavy Workload with Dell/EMC SAN Storage Solution
sponsored by Dell, Inc.
CASE STUDY: In order to eliminate its storage I/O bottleneck, SparkPeople redeployed three databases on a new Dell/EMC storage array along with Dell PowerEdge servers to host Web applications. Access this case study now to learn more about this about transition and the benefits achieved.
Posted: 20 Oct 2010 | Published: 19 Oct 2010

Dell, Inc.

IBM System Storage™ SAN Volume Controller Technology Gives Nexans Optimum Storage Flexibility
sponsored by IBM
WHITE PAPER: Read this case study to learn how Nexans Euromold expired (HP msa1000), André Fouquart, Information Systems Manager at Nexans, went looking for a new storage platform. It soon became clear that an IBM SVC solution combined with IBM System Storage™ DS3400 arrays was the best solution, read more now.
Posted: 20 Oct 2010 | Published: 19 Oct 2010

IBM

E-Guide: Scalability Strategies - Managing Growing Oracle Databases
sponsored by Dell, Inc. and Intel®
EGUIDE: Read this e-guide and learn more about key considerations, best practices and strategies for managing Oracle database growth. Get expert advice for scaling Oracle databases using clustering or other approaches.
Posted: 15 Oct 2010 | Published: 14 Oct 2010

Dell, Inc. and Intel®

Virtualizing Tier 1 Applications: A Critical Step on the Journey Toward the Private Cloud
sponsored by VMware, Inc.
WHITE PAPER: This IDC white paper explains how much of the Enterprise IT community is at a crossroads in extending their journey to the private cloud: Companies must virtualize their business critical applications in order to reap the benefits of cloud computing.
Posted: 14 Oct 2010 | Published: 01 Jan 2010

VMware, Inc.
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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 … 
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