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RAID

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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, Disk Arrays
DEFINITION: In computers, parity (from the Latin paritas: equal or equivalent) refers to a technique of checking whether data has been lost or written over when it's moved from one place in storage to another or when transmitted between computers.Here's how it works: An additional binary digit, the parity bit, is added to a group of bits that are moved together. This bit is used only for the purpose of identifying  … 
Definition continues below.
RAIDReports
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CW Buyer's Guide: Server Virtualisation
sponsored by ComputerWeekly.com
ESSENTIAL GUIDE: This Computer Weekly buyer’s guide to server virtualisation looks at the potential barriers to successful virtualisation and how they can be overcome.
Posted: 09 Mar 2012 | Published: 09 Mar 2012

ComputerWeekly.com

2012 Trends to Watch: Storage
sponsored by ComputerWeekly.com
ANALYST BRIEF: Ovum analyses data growth, big data, disk shortages, public cloud storage, flash memory, and other storage trends.
Posted: 09 Feb 2012 | Published: 09 Feb 2012

ComputerWeekly.com

Unlocking the Value of Global Deduplication for Enterprise Data Management
sponsored by CommVault Systems, Inc.
WHITE PAPER: CommVault Simpana software is the only end-to-end data management solution that delivers global data deduplication across replication, backup and archiving functions. This white paper explains more about this single-platform architecture that keeps compressed data on shared storage resources, giving you control over all data management functions.
Posted: 27 Dec 2012 | Published: 16 Feb 2009

CommVault Systems, Inc.

Presentation Transcript: Data Protection Methods for Object Stores
sponsored by Quantum Corporation
PRESENTATION TRANSCRIPT: If you have billions and billions of files and you want to use a storage system that doesn't have the restrictions of a standard file system, you can use an object store. Check out this expert transcript to learn more about object store and four different data protection methods used for this type of storage.
Posted: 21 Nov 2012 | Published: 21 Nov 2012

Quantum Corporation

Presentation Transcript: Analysts React: Dell Blades Announcement
sponsored by Dell and VMware
PRESENTATION TRANSCRIPT: SearchStorage.com editors interviewed industry experts Howard Marks, Terri McClure and Andrew Reichman to get their reactions to Dell Inc. launching the Dell EqualLogic PS-M4110 Blade Arrays at Dell Storage Forum 2012.
Posted: 05 Sep 2012 | Published: 05 Sep 2012

Dell and VMware

Essential Guide to Solid-State Storage Implementation
sponsored by SearchSolidStateStorage.com
ESSENTIAL GUIDE: Learn about the vast power and potential of solid-state storage in this Essential Guide to SSS implementation. Access five expert-written articles about SSS deployment, its impact, how to harness the most power from it and more!
Posted: 25 Jul 2012 | Published: 23 Jul 2012


Storage Efficiency Best Practices: Tiering and Energy Efficiency
sponsored by Dell, Inc. and Intel®
EGUIDE: You need modern storage that is simpler, more agile, and grows along with your business. Check out this expert E-Guide to explore 8 green storage best practices that increase energy efficiency while reducing your costs.
Posted: 01 May 2012 | Published: 24 Apr 2012

Dell, Inc. and Intel®

E-Guide: NAS Systems Buying Decisions
sponsored by Dell and Microsoft
EGUIDE: Check out this E-Guide to learn about a viable and now cost-effective storage solution – NAS and what you should consider when evaluating this product for purchase. Also discover what Dell’s VP has to say about scale-out NAS and more.
Posted: 20 Mar 2012 | Published: 20 Mar 2012

Dell and Microsoft

E-Guide: Purchasing hardware for SQL Server
sponsored by Dell, Inc. and Microsoft
EGUIDE: SQL Server performance is highly dependent on how you configure your server's storage subsystems. With that in mind, this e-guide dives into a benefit/cost comparison of the increasingly popular solid-state drive (SSD) trend and explains some of the top mistakes people make when purchasing hardware for SQL Server.
Posted: 09 Feb 2012 | Published: 30 Jan 2012

Dell, Inc. and Microsoft

Server Optimization, Hardware and Virtualization
sponsored by Dell, Inc. and Microsoft
EGUIDE: In this expert e-guide, find out how to optimize SQL Server with the right choices for hardware, storage devices, and virtualization. Inside, find articles on: what not to do when purchasing hardware; if solid-state storage devices are worth the cost; hardware and risk considerations for an inevitable virtualization initiative.
Posted: 10 Jan 2012 | Published: 09 Jan 2012

Dell, Inc. and Microsoft

Best Practices for Managing Storage in a Virtual Server Environment
sponsored by Dell Compellent
EGUIDE: This expert e-guide outlines the top 5 tips for managing storage in a virtual server environment and also divulges a set of best practices for using server virtualization in your storage environment. Read on to learn more.
Posted: 23 Sep 2011 | Published: 23 Sep 2011

Dell Compellent

HP StoreOnce Deduplication Software: Technology Fueling the next phase of storage optimization (ESG)
sponsored by HP
WHITE PAPER: Today’s most popular backup storage targets featuring deduplication, however, don’t address the long-term operational issues that are sure to arise as secondary storage environments expand.
Posted: 05 Aug 2011 | Published: 05 Aug 2011

HP

E-Guide: Best Practices for Managing Virtual Machines
sponsored by Dell Compellent
EGUIDE: There are many things to consider when designing storage to support a virtual desktop infrastructure environment. While budgets may limit some of your options, there are a number of creative solutions available that can help you get the performance your virtual desktops will require. Read this guide to learn more.
Posted: 22 Jun 2011 | Published: 22 Jun 2011

Dell Compellent

E-Guide: Top 5 Tips for Managing Virtual Server Environments
sponsored by Dell Compellent
EGUIDE: To help data storage professionals make the most of these challenging environments, we've collected our top five tips on managing storage in a virtual server environment. Download this E-Guide to learn how to go about managing your virtual environments more efficiently.
Posted: 20 Jun 2011 | Published: 20 Jun 2011

Dell Compellent

Case Study: German TV Broadcaster RTL II Accelerates Content Delivery with Storage Solutions from SGI
sponsored by SGI
CASE STUDY: As a TV station offering programming around the clock, the requirements of a storage solution for digital media content at RTL II are both clear and sophisticated: the technologies used must be state of the art in order to meet the demanding IT performance requirements, as large data volumes need to be transferred at top speeds.
Posted: 13 Jun 2011 | Published: 13 Jun 2011

SGI

Storage for Your VDI: Strategies and Best Practices
sponsored by Dell, Inc.
EGUIDE: This E-Guide from SearchStorage.com discusses VDI's impact on storage and then outlines how to determine your storage requirements for a virtual desktop infrastructure. Read on to learn about Fibre Channel vs. NAS vs. iSCSI for VDIs, what drive types are best for this environment and much more
Posted: 11 May 2011 | Published: 11 May 2011

Dell, Inc.

Tennis Australia scores big with IBM® XIV® Storage Systems
sponsored by IBM
CASE STUDY: With the pressure and exposure of major international tournaments, Tennis Australia had a compelling need for reliable, easy-to-manage storage that could scale quickly. IBM served up their XIV Storage System, which dramatically reduced downtime, cut costs, and simplified storage management. Read this case study for more.
Posted: 22 Mar 2011 | Published: 22 Mar 2011

IBM

Achieving Superior Manageability, Efficiency, and Data Protection with Oracle's Sun ZFS Storage Software
sponsored by Oracle Corporation
WHITE PAPER: Oracle's Sun ZFS Storage software is the key ingredient that enables Oracle's Sun ZFS Storage Appliances to deliver unmatched simplicity, ease-of-use, increased storage efficiency, and industry leading price/performance.
Posted: 21 Mar 2011 | Published: 01 Dec 2010

Oracle Corporation

Oracle RMAN Disk-to-Disk Backup Methods Using Sun Storage Array
sponsored by Oracle Corporation
WHITE PAPER: This document provides a high-level description of how to implement an RMAN backup and recover methodology using Sun® storage arrays as the storage medium. For more information about Oracle best practices, refer to Best Practices for Running Oracle RAC Database with ASM on a Sun Storage 6540, 6580, or 6780 Storage Array.
Posted: 21 Mar 2011 | Published: 01 Jul 2010

Oracle Corporation

E-Guide: Improve your performance and avoid bottlenecks in your storage networks
sponsored by PC Mall
EGUIDE: This e-guide will help you improve your storage-area networks (SANs) and fine-tune your storage networks. Find out what steps you should take to prepare your SAN for the worst, and learn what you can do to improve your storage network performance, efficiency and resiliency. Check out this e-guide today!
Posted: 14 Mar 2011 | Published: 14 Mar 2011

PC Mall

Simpana® Software—A Unique Cloud-Enabled Platform
sponsored by CommVault Systems, Inc.
WHITE PAPER: Check out this white paper to see how Simpana software seamlessly extends local backup and archive to a new tier of cloud-based storage. Virtually unlimited storage capacity from out integrated cloud storage partners helps users dramatically reduce costs and operational complexity while improving long-term compliance.
Posted: 17 Feb 2011 | Published: 17 Feb 2011

CommVault Systems, Inc.

E-Guide: Virtual Tape Libraries and Data Deduplication in Enterprise Storage Today
sponsored by Fujitsu America, Inc.
EGUIDE: Download this guide to learn more about the solutions surrounding virtual tape libraries and data deduplication in today’s enterprise storage environments.
Posted: 03 Jan 2011 | Published: 30 Dec 2010

Fujitsu America, Inc.

A Better RAID Strategy for High Capacity Drives in Mainframe Storage
sponsored by Oracle Corporation
WHITE PAPER: This paper demonstrates that RAID 6 is less capable to prevent data loss with today's large capacity SATA and SAS HDDs. It will also share Oracle's designs to mitigate this risk. The integrity of customers' data is in jeopardy if these large capacity SATA/SAS HDDs are simply packaged into a RAID 6 group without additional mitigation.
Posted: 21 Dec 2010 | Published: 21 Dec 2010

Oracle Corporation

Solving the Problem of Persistent Data Retention
sponsored by SGI
WHITE PAPER: Read this paper to learn the techniques for ensuring that persistent data in the enterprise today will really be available when it is needed in the future.
Posted: 17 Dec 2010 | Published: 17 Dec 2010

SGI

E-Guide: Best of 2010: The 10 Web Pages Most Read by UK-based IT Pros
sponsored by EMC Backup and Recovery Solutions
EGUIDE: This searchstorage.co.uk eguide is comprised of the best and most read expert articles. Read this brief guide to find out how to avoid the common pitfalls of  storage planning and how you can prepare your business for 2011.
Posted: 23 Nov 2010 | Published: 23 Nov 2010

EMC Backup and Recovery Solutions
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RAID DEFINITION (continued): …  whether the bits being moved arrived successfully. Before the bits are sent, they are counted and if the total number of data bits is even, the parity bit is set to one so that the total number of bits transmitted will form an odd number. If the total number of data bits is already an odd number, the parity bit remains or is set to 0. At the receiving end, each group of incoming bits is checked to see if the group totals to an odd number. If the total is even, a transmission error has occurred and either the transmission is retried or the system halts and an error message is sent to the user.The … 
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