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RAID

ALSO CALLED: Array, R A I D Array, Storage Arrays, Arrays, RAID Array, Redundant Array of Inexpensive Disks, R A I D, Redundant Array of Independent Disks, and Disk Arrays
DEFINITION: RAID (redundant array of independent disks; originally redundant array of inexpensive disks) is a way of storing the same data in different places (thus, redundantly) on multiple hard disks. By placing data on multiple disks, I/O (input/output) operations can overlap  … 
Definition continues below.


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Storage Virtualization Presentation Download: Breaking the Connections
sponsored by Dell, Inc.
WHITE PAPER:   Posted: 08 Jul 2008 | Published: 08 Jul 2008
SUMMARY: Storage virtualization is here, breaking the connection between physical storage infrastructure and the way we use it. This presentation download provides an overview on storage virtualization and the different kinds of virtualization technologies...
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The Next Wave of Virtualization
sponsored by EMC Partner Organization
VIDEOCAST:   Posted: 30 Jun 2008 | When: 30 Jun 2008
SUMMARY: The next generation of virtualization will have a big impact on storage infrastructures. Find out the chief storage management challenges associated with a virtualized environment, and get practical tips on how to deal with them.
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The Storage Virtualization Roadmap
sponsored by EMC Partner Organization
VIDEOCAST:   Posted: 30 Jun 2008 | When: 30 Jun 2008, 09:00 EDT (13:00 GMT)
SUMMARY: Implementing and evaluating storage virtualization continues to be high-on-mind for many storage managers. But how did we get to this point in the storage continuum? In this expert Videocast, Steve Duplessie explains by building a virtualization roadmap.
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Hitachi's SMS: Enterprise Functions Meets Consumer Simplicity
sponsored by MPC Corporation
PRODUCT LITERATURE:   Posted: 30 Jun 2008 | Published: 15 Oct 2007
SUMMARY: The SMS system is Hitachi's first strategic foray into the storage market for SMBs and distributed enterprise, this would make SMS suitable for mobile applications like military duty, and mobile health care units.
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Digging into iSCSI
sponsored by EMC Partner Organization
VIDEOCAST:   Posted: 30 Jun 2008 | When: 30 Jun 2008, 09:00 EDT (13:00 GMT)
SUMMARY: In this expert Videocast, Stephen Foskett, Director of Data Practice at Contoural, digs into iSCSI and explains some of the benefits and pitfalls regarding the technology.
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Advanced Backup School II
sponsored by EMC Partner Organization
WEBCAST:   Posted: 30 Jun 2008 | When: Available On Demand
SUMMARY: In this Webcast, VP of Data Protection Services for GlassHouse Technologies, W. Curtis Preston explains what options you have when creating a disk-based system and the steps you need to take before implementing it.
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StorTrends iTX®: Application-aware Scheduled Snapshots with Microsoft® VSS and SAFE
sponsored by Excel Meridian Data, Inc.
WHITE PAPER:   Posted: 30 Jun 2008 | Published: 01 Jan 2007
SUMMARY: The snapshot implementation featured in StorTrends iTX is undoubtedly one of the best, most feature-rich in the industry.
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ISE: A New Foundation for Data Storage
sponsored by Xiotech Corporation
VIDEOCAST:   Posted: 18 Jun 2008 | When: 18 Jun 2008, 09:00 EDT (13:00 GMT)
SUMMARY: This Videocast highlights a revolutionary next generation disk storage platform that delivers a number of performance advantages over conventional technologies.
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Solutions for Simplifying Storage Management in VMware Environments
sponsored by Xiotech Corporation
VIDEOCAST:   Posted: 17 Jun 2008 | When: 17 Jun 2008, 09:00 EDT (13:00 GMT)
SUMMARY: Fortunately, new solutions are emerging to combat these issues and this Videocast highlights one such technology. View this Videocast to learn about an innovative new solution that integrates with VMware environments to deliver critical benefits.
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The New Foundation of Storage: Xiotech's Intelligent Storage Element
sponsored by Xiotech Corporation
WHITE PAPER:   Posted: 16 Jun 2008 | Published: 01 Jun 2008
SUMMARY: ISE is the new foundation that promises to fulfill storage needs well into the future and ISE is a fresh new approach to the fundamental aspects of storage, setting new standards for reliability, performance, and scalability.
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It's Time for Disk Drives 2.0
sponsored by Xiotech Corporation
WHITE PAPER:   Posted: 16 Jun 2008 | Published: 01 Mar 2008
SUMMARY: After decades of addressing the symptoms and masking the issue, it is time to apply new thought and technology to address the cause and deliver Disk Drives 2.0--drives that do not negatively impact IT.
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Xiotech Intelligent Storage Element: Managed Reliability
sponsored by Xiotech Corporation
WHITE PAPER:   Posted: 16 Jun 2008 | Published: 01 Apr 2008
SUMMARY: This report examines the Intelligent Storage Element, an integral component of Xiotech's new Emprise 5000 and Emprise 7000 storage systems, and its ability to enhance the availability, reliability and performance of storage systems.
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Chapter 2: The Shortcut Guide™ to Exchange Server 2007 Storage Systems
sponsored by LeftHand Networks
BOOK:   Posted: 12 Jun 2008 | Published: 01 Jan 2007
SUMMARY: This chapter reviews not only the common mistakes that are made when calculating the amount of storage required to support a group of users but also the mistakes made when calculating the I/O capacity required to support that group of users.
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HP StorageWorks 3 Data Center Replication - protects against both local and wide-area disasters by simultaneously supporting short-distance synchronous replication and long-distance asynchronous replication emanating from the same source volume
sponsored by Hewlett-Packard Company
WHITE PAPER:   Posted: 11 Jun 2008 | Published: 01 Apr 2008
SUMMARY: The HP StorageWorks 3 Data Center Replication (3DC) architecture technology provides data currency and consistency.
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Remote Replication Best Practices for Oracle 10g Using XP Continuous Access White Paper
sponsored by Hewlett-Packard Company
WHITE PAPER:   Posted: 11 Jun 2008 | Published: 01 Apr 2008
SUMMARY: The test results and information presented in this paper explain how to properly plan for and successfully deploy a remote copy infrastructure for an Oracle 10g database using HP XP12000 Disk Arrays and HP StorageWorks XP Continuous Access Software.
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Increase Application Performance with Solid State Disks
sponsored by Texas Memory Systems, Inc.
WHITE PAPER:   Posted: 10 Jun 2008 | Published: 01 Feb 2008
SUMMARY: Super fast solid state discs allow organizations to manage high transaction volumes and larger numbers of users using fewer servers. Read this white paper to learn more about SSDs and how they provide a cost-effective way to improve application per...
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Achieving Energy Efficiency Using Solid State Disks (SSD)
sponsored by Texas Memory Systems, Inc.
WHITE PAPER:   Posted: 10 Jun 2008 | Published: 07 Dec 2007
SUMMARY: This white paper explores how solid state disk (SSD), especially Flash-based SSD can be incorporated into an energy-efficiency strategy as part of a tiered storage architecture to address power concerns while also reducing server and storag...
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Lower Your Total Cost of Ownership with Fast Solid State Disks
sponsored by Texas Memory Systems, Inc.
WHITE PAPER:   Posted: 10 Jun 2008 | Published: 10 Jun 2008
SUMMARY: This white paper provides an overview of solid state disks (SSD) and the benefits they deliver for companies. SSDs are becoming a practical option for dealing with application performance concerns. Learn how they deliver a lower Total Cost of Ownership.
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High Availability and Failover: Ensuring Availability for IP-SAN Solutions
sponsored by Excel Meridian Data, Inc.
WHITE PAPER:   Posted: 09 Jun 2008 | Published: 01 Jan 2007
SUMMARY: This document will serve to outline High Availability in detail, focusing on its implementation and operation.
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Podcast: Using virtualization backup and replication to protect physical servers
sponsored by Dell, Inc.
PODCAST:   Posted: 09 Jun 2008 | Premiered: 09 Jun 2008
SUMMARY: In this podcast, server virtualization expert David Davis describes the pros and cons of and best practices for using virtualization-based backup and replication to protect physical servers.
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Using virtualization backup and replication to protect physical servers
sponsored by Dell, Inc.
WEBCAST:   Posted: 09 Jun 2008 | When: Available On Demand
SUMMARY: In this webcast, server virtualization expert David Davis describes the pros and cons of and best practices for using virtualization-based backup and replication to protect physical servers.
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Top Considerations When Installing a Distributed NAS & Branch Office Data Protection Solution
sponsored by Adaptec, Inc.
WEBCAST:   Posted: 09 Jun 2008 | When: Available On Demand
SUMMARY: In this Webcast, Don Chouinard, Director of the Snap Server Division of Adaptec, discusses how to overcome common issues that can make or break your multi-site storage solution.
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Best Practices for Architecting a Lustre-Based Storage Environment
sponsored by DataDirect Networks
WHITE PAPER:   Posted: 09 Jun 2008 | Published: 01 Jun 2008
SUMMARY: This document articulated a number of the design implications and provides the reader with information to make informed decisions to scale high-performance cluster file I/O.
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CISSP Study Guide
sponsored by Channel Media Group
WHITE PAPER:   Posted: 03 Jun 2008 | Published: 03 Jun 2008
SUMMARY: Learn how a managed services contract can help you and your business.
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Considerations For Hi-Rez Cameras And Networked Storage In An Overall Surveillance Solution
sponsored by Adaptec, Inc.
WEBCAST:   Posted: 03 Jun 2008 | When: Available On Demand
SUMMARY: This Webcast highlights the importance of having a stable storage infrastructure in your video surveillance system and the benefits that can be realized.
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RAID DEFINITION (continued): …  in a balanced way, improving performance. Since multiple disks increases the mean time between failures (MTBF), storing data redundantly also increases fault tolerance.

Ask your RAID questions at ITKnowledgeExchange.com

A RAID appears to the operating system to be a single logical hard disk. RAID employs the technique … 
RAID definition sponsored by SearchStorage.com, powered by WhatIs.com an online computer dictionary



SPECIAL REPORT
ESG Plasmon Enterprise Archive Appliance Whitepaper
by Plasmon

New regulations and e-discovery requirements call for new digital archive measures. Download this ESG white paper by Heidi Biggar and learn how to get persistent data off primary storage systems and onto a new system that makes for easy retrieval.
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