THE WHATIS.COM WORD-OF-THE-DAY January 29, 2003 application clustering
______________ TODAY'S SPONSOR: Free CRM whitepapers Download the key papers you need today to make better-informed decisions. Targeted categories include: Business Intelligence, Data Warehousing, CRM Technology, Customer Service and Implementation, Integration and Business Processes. Click here to access the free SearchCRM.com white papers section http://searchcrm.techtarget.com/whitepapers3/0,,sid11,00.html ______________ TODAY'S WORD: application clustering See our complete definition with hyperlinks at http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci875993,00.html Application clustering (sometimes called software clustering) is a method of turning multiple computer servers into a cluster (a group of servers that acts like a single system). Clustering software is installed in each of the servers in the group. Each of the servers maintains the same information and collectively they perform administrative tasks such as load balancing, determining node failures, and assigning failover duty. The other clustering method, hardware clustering, requires that specialized hardware be installed in a single server that controls the cluster. Because servers can easily be added or removed from the cluster as needs dictate, an application cluster is more scalable than its hardware-based counterpart. Furthermore, because it doesn't require specialized hardware, an application cluster tends to be easier and cheaper to configure. For these reasons, application clustering is the more commonly practiced method. RELATED TERMS: server http://whatis.techtarget.com/definition/0,,sid9_gci212964,00.html cluster http://whatis.techtarget.com/definition/0,,sid9_gci211801,00.html load balancing http://whatis.techtarget.com/definition/0,,sid9_gci214490,00.html failover http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci753437,00.html hardware clustering http://searchsolaris.techtarget.com/sDefinition/0,,sid12_gci873501,00.html ______________________ SELECTED LINKS: SearchDomino offers a collection of Best Web Links about clustering. http://searchdomino.techtarget.com/search/1,293876,sid4,00.html?h=true&query=clustering HostingTech explains The art of JRun server clustering. http://www.hostingtech.com/dp/02_02_jrun.html ______________________ QUIZ #35 | Common Vulnerabilities Take our quiz to test your knowledge about common security vulnerabilities. Learn how to defend your organization against them with the resources we've collected. http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci875285,00.html ______________________ WHATIS.COM POLL | How do you stay on top? 57% of the readers who responded to our last poll said they hadn't been sent for any IT training in 2002. We'd like to know: How do you stay on top of what's new in your area of IT? http://www.whatis.com/poll ______________________ REAL LIFE CHALLENGE | Upgrade to Win2k server or wait for .NET? Ned is an IT manager in a Windows NT environment with a couple of hundred workstations and several servers. Ned's CEO wants him to determine whether it would be better for the company upgrade to a Windows 2000 server, or wait until the Windows .NET server (now called Microsoft Windows Server 2003) comes out. Can you advise? http://whatis.discussions.techtarget.com/WebX?[EMAIL PROTECTED]@.1dcfae0e/211!viewtype=threadDate&skip=&expand= ______________________________ RECENT ADDITIONS AND UPDATES [1] R/2 http://searchsap.techtarget.com/sDefinition/0,,sid21_gci876431,00.html [2] heuristics http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci876400,00.html [3] mail transfer agent http://searchwebservices.techtarget.com/sDefinition/0,,sid26_gci876011,00.html [4] X# http://searchwebservices.techtarget.com/sDefinition/0,,sid26_gci875257,00.html [5] Advanced Planner and Optimizer http://searchsap.techtarget.com/sDefinition/0,,sid21_gci874121,00.html ____________________________________________________________________ ::::::::::::::::::: WHATIS.COM CONTACTS ::::::::::::::::::: LOWELL THING, Site Editor ([EMAIL PROTECTED]) ____________________________________________________________________ MARGARET ROUSE, Associate Editor ([EMAIL PROTECTED]) ___________________________________________________________________ :::::::::::::::::::: ABOUT THIS NEWSLETTER ::::::::::::::::::::: Published by TechTarget (http://www.techtarget.com) TechTarget - The Most Targeted IT Media Copyright 2003, All Rights Reserved. Unsubscribe from 'Word of the Day' - Simply Reply to this Email with REMOVE within the Body or Subject > or - Go to: http://WhatIs.techtarget.com/register - Log in to edit your profile. - Click on the link to Edit email subscriptions. - Uncheck the box next to the newsletter you wish to unsubscribe from. - When finished, click "Save Changes to My Profile."
