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
Definition continues below.
PODCAST: Posted: 09 May 2008 | Premiered: 09 May 2008
SUMMARY:
This podcast provides a basic understanding of the building blocks of IT continuity, the costs and risks of the unplanned downtime and a description of high availability, replication and continuous data protection technologies.
SUMMARY:
This podcast examines how an enterprise content delivery network (eCDN) can help your company distribute content closer to remote users while maintaining high availability, DOS protection, and compliance requirements.
WEBCAST: Posted: 15 Apr 2008 | When: Available On Demand
SUMMARY:
This podcast explores how one phone company was able to save millions of dollars a year by migrating to Oracle. For ongoing projects, learn how Oracle's Solutions Support Center enables you to achieve ROI and engage in customized troubleshooting.
SUMMARY:
This podcast provides a preview of the causes of planned and unplanned downtime and it will discuss in detail the options of high availability and disaster recovery.
SUMMARY:
The purpose of this podcast is to provide an introduction to System I high availability for companies that want to understand this technology.
SUMMARY:
Listen to a quick overview of CA's "Recovery Management" strategy, and how you can solve all of your disaster recovery, backup, and high availability needs with one vendor, CA.
WEBCAST: Posted: 10 Mar 2008 | When: Available On Demand
SUMMARY:
XCalibre, (www.xcalibre.co.uk), a leading UK-based hosting service provider, serving more than 9,000 customers and offers both shared hosting and dedicated server environments.
PODCAST: Posted: 25 Feb 2008 | Premiered: 25 Feb 2008, 09:00 EST (14:00 GMT)
SUMMARY:
This podcast addresses what communications service providers need to deliver to create higher margins and differentiate themselves from their competitors or face selling commodity bits per second.
HIGH AVAILABILITY DEFINITION (continued): for a system or product is known as "five 9s" (99.999 percent) availability.
Since 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 High Availability definition sponsored by SearchDataCenter.com, powered by WhatIs.com an online computer dictionary
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