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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.
RAIDWhite Papers (View All Report Types)
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Achieving Five-9's Availability
sponsored by Dot Hill Systems Corp.
WHITE PAPER: This white paper describes the stringent quality and measurement procedures that ensure maximum uptime.
Posted: 09 Apr 2014 | Published: 11 Jan 2012

Dot Hill Systems Corp.

Mixed All-Flash Array Delivers Safer High Performance
sponsored by Dell and VMware
WHITE PAPER: This resource details how automated tiering technologies have been enabled to move data between different types of flash based storage using a flash-optimized storage solution.
Posted: 19 Nov 2013 | Published: 08 Aug 2013

Dell and VMware

Designing Flash Optimized Storage Systems
sponsored by Dell and VMware
WHITE PAPER: This resource focuses on the Dell architecture as a reference example of the application of flash tiering within a storage array, together with integration of magnetic drives.
Posted: 19 Nov 2013 | Published: 08 Nov 2013

Dell and VMware

Dell Data Protection Point of View: Recover Everything. Every time. On time.
sponsored by Dell, Inc.
WHITE PAPER: This informative paper examines a data protection solution that's built for today's IT and can help you get back up and running after system downtime ASAP. Read on to learn more.
Posted: 19 Nov 2013 | Published: 31 May 2013

Dell, Inc.

Coffee Break: Embracing Tiered Storage
sponsored by Dell, Inc.
WHITE PAPER: In this brief white paper, you will discover tiering strategies that have emerged as an indispensable tool to cost-effectively harness the massive data growth.
Posted: 13 Nov 2013 | Published: 13 Nov 2013

Dell, Inc.

Measuring Storage Performance to Better Predict Your Storage Needs
sponsored by CloudByte
WHITE PAPER: Get help measuring the performance of your software-based storage and traditional hardware-based storage to better predict your current and future storage needs.
Posted: 14 Aug 2013 | Published: 14 Aug 2013

CloudByte

Re-enforcing a Reduced IT Infrastructure Model with High Availabilty
sponsored by LSI Corporation.
WHITE PAPER: Do you want an affordable, advanced storage clustering solution with high availability? Discover how you can use LSI Syncro CS solution at a low-cost that is even simpler-to-deploy.
Posted: 19 Jul 2013 | Published: 31 May 2013

LSI Corporation.

Building an Affordable, Fully Redundant Storage Appliance
sponsored by LSI Corporation.
WHITE PAPER: A shared storage solution is critical to achieving many of the benefits of server virtualization. Find out how LSI Syncro CS solutions can help you get reliable and high availability shared storage now.
Posted: 19 Jul 2013 | Published: 31 May 2013

LSI Corporation.

Making Server Redundancy Affordable for Remote and Branch Offices
sponsored by LSI Corporation.
WHITE PAPER: Setting up redundant servers with full data protection can be too expensive, complex, and impractical for many organizations. Read how ROBO sites deploying Syncro solutions can cost effectively give you business continuity and robust data protection.
Posted: 19 Jul 2013 | Published: 31 May 2013

LSI Corporation.

LSI Syncro CS Solutions Performance Considerations
sponsored by LSI Corporation.
WHITE PAPER: Want faster, affordable high availability deployment for DAS architecture? Read how Syncro CS solution, with LSI MegaRAID technology, can help you easily defeat cost and management problems.
Posted: 19 Jul 2013 | Published: 31 May 2013

LSI Corporation.

Data Integrity and Recoverability: 4 Essential Elements
sponsored by EMC Corporation
WHITE PAPER: This white paper explores a disk-based backup solution with deduplication that provides the ultimate protection and assurance of recovery.
Posted: 19 Jul 2013 | Published: 19 Jul 2013

EMC Corporation

Cray Sonexion™ Data Storage System
sponsored by Cray
WHITE PAPER: This white paper outlines the features and benefits of the Cray Sonexion Lustre appliance approach while comparing and contrasting it to traditional component-based approaches.
Posted: 25 Apr 2013 | Published: 31 Dec 2012

Cray

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.

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

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

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.

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

The Architectural Advantages of Compellent Automated Tiered Storage
sponsored by Dell Compellent
WHITE PAPER: With the recent profusion of tiered storage solutions into the enterprise storage market, organizations are increasingly adopting tiering strategies to accommodate rapid data growth while controlling costs. Yet most solutions fail to maximize the potential benefits of tiered storage. Read this white paper to learn more.
Posted: 11 Nov 2010 | Published: 11 Nov 2010

Dell Compellent

Remote/Branch Office Data Protection and System Availability
sponsored by CA ARCserve
WHITE PAPER: There are many approaches to remote office data protection and system availability. This paper describes best practices in using available technologies for protection, recovery and availability of remote or branch office systems, applications and data.
Posted: 19 Aug 2010 | Published: 19 Aug 2010

CA ARCserve

Fluid Data Storage: A How To Guide - Intelligent storage automation for IT administrators
sponsored by Dell Compellent
WHITE PAPER: SANs are frequently difficult to set up and configure, requiring a lot of effort to perform necessary tasks. This paper explains how a Fluid Data architecture can make life as a storage admin much easier.
Posted: 02 Aug 2010 | Published: 24 Feb 2010

Dell Compellent

Uncompromising Reliability through Clustered Storage
sponsored by Isilon Systems
WHITE PAPER: This white paper describes the limitations of traditional data protection technologies and examines Isilon IQ’s revolutionary new approach to ensuring data integrity and availability in large clustered storage environments.
Posted: 26 Jul 2010 | Published: 21 Feb 2008

Isilon Systems

Delivering IT as a Service for Virtualized Data Centers
sponsored by Continental Resources
WHITE PAPER: Architecting a successful cloud computing infrastructure can be challenging. The secure cloud architecture offers the best products and features to create a cloud service that can realize the efficiencies of shared infrastructure while still offering the security, flexibility, resilience, and ease of management of a traditional IT deployment.
Posted: 01 Apr 2010 | Published: 01 Apr 2010

Continental Resources

Six Tips for Reducing Downtime in Travel and Transport
sponsored by Marathon Technologies
WHITE PAPER: Whether it's a security system, baggage handling application, order or vessel tracking downtime to applications supporting travel and transportation can throw off precisely timed schedules for travelers and shipments alike. This paper outlines six key tips for keeping travel and transportation logistics applications running without interruption.
Posted: 23 Feb 2010 | Published: 23 Feb 2010

Marathon Technologies
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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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