High Availability ( Highly Available Computing, Data Availability, HA, High-availability, and Availability) Definition

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May 17, 2008

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High Availability

-- 114 Vendor Reports | 64 Products

ALSO CALLED: Highly Available Computing, Data Availability, HA, High-availability, and 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.

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Definition continues below.

Recent Vendor Reports on High Availability
Simple, Affordable Disaster Recovery Automation in the Virtual Data Center sponsored by Dell \| EqualLogic PRESENTATION: Posted: 14 May 2008 \| Published: 13 May 2008 SUMMARY: This self paced online seminar will focus on showing the benefit of combining Dell EqualLogic Auto-Replication and VMware's Site Recovery Manager to provide an affordable and automated Disaster Recovery Plan for Virtual Infrastructures. TOPICS: Data Centers \| Disaster Recovery \| High Availability \| Integration \| iSCSI \| SAN \| Storage Virtualization \| WAN

An Overview of Hosted Desktop Virtualization Solid ICE™ sponsored by Qumranet Inc. WHITE PAPER: Posted: 12 May 2008 \| Published: 01 Apr 2008 SUMMARY: Qumranet's Solid ICE is a fully integrated virtual desktop solution that provides the benefits of virtual desktops such as centralized management, maintenance and policy enforcement, while eliminating the drawbacks of existing solutions. TOPICS: CPU \| Desktop Applications Management \| Desktop Management \| High Availability \| Hosting Services \| Security Policies \| Server Virtualization \| Software Virtualization \| System Integration \| Terminal Emulation Software \| Virtualization

Hosted Virtual Desktop Solutions and Strategies Solid ICE™ sponsored by Qumranet Inc. DATA SHEET: Posted: 10 May 2008 \| Published: 01 Apr 2008 SUMMARY: In Solid ICE, a user's desktop runs inside a KVM virtual machine on a server in the data center, and the user connects to it from a stateless thin-client using a remote rendering technology called SPICE™. TOPICS: Desktop Applications Management \| Desktop Management \| High Availability \| Hosting Services \| Integration \| Management System \| Security Policies \| Server Virtualization \| Software Virtualization \| Terminal Emulation Software \| Virtualization

10 Reasons to Get Your Support Software as a Service sponsored by Parature, Inc. WHITE PAPER: Posted: 10 May 2008 \| Published: 01 Jan 2007 SUMMARY: Explore the top 10 reasons you should get your software as a service. Learn how you can leverage key application, accelerate ROI and achieve global availability with an on-demand model. TOPICS: Budgeting \| Business Process Automation \| CRM Software \| Customer Relationship Management \| High Availability \| ROI \| SaaS \| Security \| SMBs \| Software as a Service \| Software Implementation \| Software Upgrades

ABC Fine Wine & Spirits: iTera High Availability Delivers Top-Shelf Resiliency, Near-Zero Latency, Comfortable Price Point sponsored by Vision Solutions CASE STUDY: Posted: 09 May 2008 \| Published: 09 May 2008 SUMMARY: In the interest of due diligence, ABC weighed the virtues of several Systemi HA solutions and decided their money would be best spent on iTera High Availability. TOPICS: High Availability

An Introduction to iSeries High Availability sponsored by Vision Solutions WHITE PAPER: Posted: 09 May 2008 \| Published: 01 Jan 2003 SUMMARY: The purpose of this white paper is to provide an introduction to iSeries high availability for companies that want to understand this technology and evaluate whether such a solution can become a cost-justifiable component of their backup. TOPICS: High Availability

iTera Case Study: 2 Echo High Availability at TheBANK of Edwardsville sponsored by Vision Solutions CASE STUDY: Posted: 09 May 2008 \| Published: 01 May 2006 SUMMARY: After researching four mainstream solutions to mirror Jack Henry data files, TheBANK of Edwardsville put it's money on Echo² High Availability. TOPICS: Data Recovery \| High Availability \| RPO \| RTO

Exploding the 6 Common Myths of iSeries High Availability sponsored by Vision Solutions WHITE PAPER: Posted: 09 May 2008 \| Published: 01 Jan 2004 SUMMARY: This document explodes the 6 common myths of iSeries high availability. TOPICS: High Availability

iSeries High Availability: Why It Has Become so Affordable and Easy to Use sponsored by Vision Solutions WHITE PAPER: Posted: 09 May 2008 \| Published: 01 Jan 2006 SUMMARY: It is a fortunate change of events for the SMB-sized shop that the powerful business continuity technology of high availability is no longer reserved for the largest enterprises. TOPICS: Disaster Recovery \| High Availability \| RPO \| RTO

Breakthrough Data Recovery for IBM AIX Environments: How New Technologies Are Making Data Protection, Recovery and High Availability Easier and More Affordable sponsored by Vision Solutions WHITE PAPER: Posted: 09 May 2008 \| Published: 01 Jan 2007 SUMMARY: This white paper will provide a road map to the most effective strategies and technologies to protect data and provide fast recovery should data be lost or corrupted due to accident or malicious action. TOPICS: Data Recovery \| High Availability \| RPO \| RTO

View All High Availability Vendor Reports »

HIGH AVAILABILITY DEFINITION (continued): … a computer system or a network 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 …
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