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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: What is RAID?

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)  … 
Definition continues below.



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ESG LAB VALIDATION REPORT Exanet ExaStore Clustered NAS Performance
sponsored by Exanet
WHITE PAPER: This report explores how scale-out ExaStore clustered NAS systems deliver SAN levels of performance with the ease of management and the lower cost of NAS.
Posted: 15 Oct 2008 | Published: 15 Oct 2008
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Managing SharePoint in an Enterprise Environment
sponsored by Global Knowledge
WHITE PAPER: Microsoft Office SharePoint Server 2007 and other SharePoint technologies are excellent tools for a modern, web-based office environment. This white paper gives pointers on managing them.
Posted: 14 Oct 2008 | Published: 11 Oct 2008
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Virtualization Trends, Options, and Adoption
sponsored by Global Knowledge
WHITE PAPER: There is increasing pressure to do more with less. The keys to approaching virtualization are understanding how to unravel the complexity and planning a virtualization adoption program. This white paper demystifies virtualization as a concept.
Posted: 14 Oct 2008 | Published: 11 Oct 2008
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The Cisco MDS 9000 8-GB SAN Solutions - An Overview
sponsored by Cisco Systems, Inc.
SOFTWARE DEMO: The Cisco MDS 9000 8-GB SAN Solutions reinforces the Cisco commitment to full and seamless product interoperability and consistency, as it protects the investment, lower your TCO and reinforces the vision and value.
Posted: 08 Oct 2008 | Published: 08 Oct 2008
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Storage Virtualization for the SMO
sponsored by StorMagic, Inc.
WHITE PAPER: Most SMO systems are managed by a small number of generalist administrators, the typical action has become replacing a full server with larger storage capacity.
Posted: 06 Oct 2008 | Published: 05 Oct 2008
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Microsoft Exchange Server 2003: Best Practices Data Storage Setup
sponsored by Dot Hill Systems Corp.
WHITE PAPER: This document is intended to be a starting point to tune and optimize the storage system within the Exchange environment.
Posted: 03 Oct 2008 | Published: 03 Oct 2008
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Implementing an iSCSI SAN: DAS to SAN Migration
sponsored by StorMagic, Inc.
WHITE PAPER: Servers typically use Direct-Attached Storage disk drives for storage and are often protected using RAID. As these disks fill up, additional capacity is needed. Learn how iSCSI storage helps solve this.
Posted: 03 Oct 2008 | Published: 03 Oct 2008
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Internet Protocol & Fibre Channel in SANs
sponsored by Storage Decisions
WHITE PAPER: This document explains how Fibre Channel will continue to improve and be an important SAN technology.
Posted: 01 Oct 2008 | Published: 30 Sep 2008
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Making Virtual Backups Real
sponsored by Storage Decisions and Diligent Technologies Corporation
WHITE PAPER: This PowerPoint Presentation comes from a Storage Decisions session (New York 2008) that looked at the major server virtualization products and described the pros and cons of the various ways to back up and restore their data.
Posted: 01 Oct 2008 | Published: 01 Oct 2008
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Encryption and Archive Arrive
sponsored by Agilysys-HDS
WEBCAST: In this expert Webcast, backup guru W. Curtis Preston goes beyond the limits of today's traditional backup techniques to expose you to some of the new up-and-coming backup technologies.
Posted: 29 Sep 2008 | Premiered: Available On Demand
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Enabling Economically Viable Long-Term Disk-Based Data Protection
sponsored by Diligent Technologies Corporation
PRODUCT LITERATURE: Diligent's ProtecTIER platform is an enterprise-scale comprehensive data-protection solution that produces dramatic data reduction, allowing for an increase in the effective capacity of a given disk array of 25x or more.
Posted: 29 Sep 2008 | Published: 27 Sep 2008
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eGuide: Storage Virtualization - Help Your Customers Manage Growing Storage Demands While Boosting Your Services Revenue This Year
sponsored by Zenith Infotech
WHITE PAPER: This eGuide serves as a technology introduction to storage virtualization, and explores the areas where growing storage demands require attention.
Posted: 20 Sep 2008 | Published: 24 Sep 2008
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Data Loss = Big Money Loss
sponsored by Iron Mountain Digital
WHITE PAPER: How do you now the data you store offsite is secure? This paper examines many of the issues you need to need to be aware of if you're considering using outside parties to house your sensitive data.
Posted: 19 Sep 2008 | Published: 19 Sep 2008
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The New Storage: Flexible, Scalable, and Green
sponsored by Dell | EMC
WHITE PAPER: Any organization with growing data storage -- and that's just about everybody now -- needs to do something, and what they did in the past won't work in the future. This paper gives a brief view into "new storage" -- flexible, scalable and green.
Posted: 19 Sep 2008 | Published: 19 Sep 2008
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Using HP StorageWorks All-in-One Storage System with VMware ESX Server Solution - Overview and Configuration Guide
sponsored by Hewlett-Packard Company
WHITE PAPER: This paper explains how HP StorageWorks All-in-One Storage System can be used as the storage repository for a VMware ESX server using iSCSI connectivity between the iSCSI initiator on the VMware server and the iSCSI Target built into the AiO.
Posted: 17 Sep 2008 | Published: 17 Sep 2008
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MD3000 and MD3000i: Array Tuning Best Practices
sponsored by Dell, Inc.
WHITE PAPER: This white paper provides an overall approach to tuning I/O performance and also provides specific guidelines for using the storage array tuning controls.
Posted: 17 Sep 2008 | Published: 16 Sep 2008
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Auto-Snapshot Manager/VMware® Edition: Automated, Integrated, and Scalable Protection of Virtual Machines
sponsored by Dell, Inc.
PRODUCT LITERATURE: Auto-Snapshot Manager/VMware Edition (ASM/VE) is a unique and innovative data protection feature of the Dell EqualLogic™ PS Series iSCSI SAN that enables fast online backups and quick restores of VMware virtual machines.
Posted: 15 Sep 2008 | Published: 15 Mar 2008
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Leveraging COTS Middleware to Accelerate Ramp to Cash Flow Positive
sponsored by Enea
WHITE PAPER: The well understood requirements and broad acceptance of emerging industry standards has solidified the viability of COTS middleware.
Posted: 15 Sep 2008 | Published: 15 Mar 2008
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IBM System x Servers - The Right Choice. Open. Easy. Green
sponsored by IBM
WHITE PAPER: IBMSystemx is a portfolio of robust servers built on IBMX-Architecture's our blueprint for bringing innovation tox86systems. Innovation that helps set you apart from the competition. Learn more in this paper.
Posted: 11 Sep 2008 | Published: 11 Sep 2008
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The New EMC CLARiiON CX4: Leading-Edge Midrange Storage for Virtualized Environments
sponsored by EMC Corporation
PRODUCT LITERATURE: The EMC CLARiiON CX4 series of networked storage systems combines CLARiiON five 9's availability with innovative, future-ready technologies to lower your cost of ownership.
Posted: 10 Sep 2008 | Published: 10 Sep 2008
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Snapshots & Data Protection
sponsored by Dot Hill Systems Corp.
WHITE PAPER: This paper discusses data snapshot technology, one of the key tools for accessing, distributing and protecting your data resources. Learn how AssuredSnap, provides the capabilities for protecting data and enabling a series of data management services.
Posted: 10 Sep 2008 | Published: 09 Sep 2008
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SAS & Fibre Channel - Compared
sponsored by Dot Hill Systems Corp.
WHITE PAPER: This paper explores SAS -- a relatively new entry into the disk drive market -- as a very viable replacement for Fibre Channel based (FC) disk drives.
Posted: 10 Sep 2008 | Published: 09 Sep 2008
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NetApp and Citrix XenServer 4.1 - Building a Virtual Infrastructure from Server to Storage
sponsored by Citrix
WHITE PAPER: This technical report discusses how integrating NetApp® solutions for virtual infrastructures can solve the unique challenges inherent with the server virtualization solutions from Citrix®.
Posted: 09 Sep 2008 | Published: 08 Sep 2008
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HP StorageWorks All-in-One Systems
sponsored by Hewlett-Packard Company
WEBCAST: Manage, grow and protect your expanding data storage environment with HP's radically simple, affordable, and reliable network storage solutions for smaller IT environments.
Posted: 08 Sep 2008 | Premiered: Available On Demand
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HP All-in-One Storage Systems
sponsored by Hewlett-Packard Company
SOFTWARE DEMO: HP All-in-One storage system from HP combines a window file server with an ICSI storage array while including integrated data protection software and a radically simple management interface.
Posted: 08 Sep 2008 | Published: 08 Sep 2008
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RAID DEFINITION (continued): …  operations can overlap 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 definition sponsored by SearchStorage.com, powered by WhatIs.com an online computer dictionary



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