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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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Ensuring Cost-effective, High-performance Storage Deployments for Microsoft Exchange Server 2007 Environments
sponsored by Hitachi Data Systems
WHITE PAPER: A well thought out storage design will help your organization achieve the most from your Exchange solution architecture - taking into consideration capacity, performance and availability, as well as budget, requirements. This Solution Brief includes nine key considerations for storage deployments to support your Microsoft Exchange environment.
Posted: 17 Jun 2009 | Published: 15 Jun 2009

Hitachi Data Systems

Data Deduplication Background - A Technical White Paper
sponsored by Quantum Corporation
WHITE PAPER: The purpose of data deduplication is to increase the amount of information that can be stored on disk arrays and to increase the effective amount of data that can be transmitted over networks. Read this white paper to learn more about data deduplication as well as Quantum Dxi-Series disk-based backup solutions.
Posted: 10 Jun 2009 | Published: 10 Jun 2009

Quantum Corporation

Storage magazine Online June 2009: Heal Thyself
sponsored by SearchStorage.com
EZINE: A trend in storage product messaging these days is the theme of self-healing storage - the ability of a system to detect and repair hard disk problems automatically. In this month's cover story, independent storage expert Marc Staimer explains how and how well they work. This electronic issue also includes features on storage efficiency...
Posted: 28 May 2009 | Published: 28 May 2009

SearchStorage.com

Backup and Recovery for Microsoft Exchange Server - Data Domain Deduplication Storage Best Practices Guide
sponsored by EMC Backup and Recovery Solutions
WHITE PAPER: In many companies, Microsoft Exchange is now commonly viewed as a mission-critical application. Protecting Exchange information is critical and backup is still the primary method used. This paper focuses on the traditional backup and recovery practices for Microsoft Exchange Server along with solutions from Data Domain.
Posted: 08 May 2009 | Published: 08 May 2009

EMC Backup and Recovery Solutions

Modular Systems: The Evolution of Reliability
sponsored by APC by Schneider Electric
WHITE PAPER: Modularity is an established technique for organizing and simplifying a complex system. In data centers, modular design has already taken root in new fault-tolerant architectures for servers and storage systems. The mission of this paper is to illustrate how modularity delivers a profound reliability benefit: fault tolerance
Posted: 29 Apr 2009 | Published: 01 Jan 2005

APC by Schneider Electric

Agentless Architecture: Agentless Backup is Not a Myth
sponsored by Asigra
WHITE PAPER: Agentless backup is NOT a myth. The Asigra solution is proof because it requires no agents, which inherently makes it easier to install and support than legacy backup and recovery solutions. This paper serves as an introduction to Asigra's Hybrid Cloud Backup and Recovery Software.
Posted: 20 Apr 2009 | Published: 20 Apr 2009

Asigra

An Economical Approach To Maximizing Data Availability: Sun Storage 7000 Unified Storage Systems
sponsored by Sun Microsystems, Inc. and Microsoft
WHITE PAPER: Sun Storage 7000 Unified Storage Systems offer enterprise-class storage features while leveraging open source software and industry standard components to lower costs and provide greater innovation. Read this paper and see how your organization can benefit from Sun Storage 7000 Unified Storage Systems.
Posted: 08 Apr 2009 | Published: 30 Nov 2007

Sun Microsystems, Inc. and Microsoft

Presentation Transcript: Deduplication's Impact on Restores
sponsored by Hewlett-Packard Company
PRESENTATION TRANSCRIPT: This segment begins with an explanation of how long to store backups to get the maximum benefit of deduplication, and then discusses the appropriate frequency of full backups.
Posted: 07 Apr 2009 | Published: 07 Apr 2009

Hewlett-Packard Company

Presentation Transcript: Let's Talk About Deduplication
sponsored by Hewlett-Packard Company
PRESENTATION TRANSCRIPT: In this segment, Curtis begins by defining and explaining deduplication. He expands on this with an explanation of file-level and subfile-level deduplication and how subfile-level deduplication makes true disk backup feasible.
Posted: 07 Apr 2009 | Published: 07 Apr 2009

Hewlett-Packard Company

Best Practices: Backing Up VMware with Veritas NetBackup
sponsored by Symantec Corporation
WHITE PAPER: As there are many ways of using VMware technology, there are just as many methods available for protecting this innovative technology. System administrators and IT technologists can use this paper to determine one of three recommended solutions for protecting VMs. Each of these technologies has relative advantages and disadvantages.
Posted: 17 Mar 2009 | Published: 01 Jan 2009

Symantec Corporation

Iron Mountain Digital Virtual File Store Service: Trusted, Secure, Cost-Effective Cloud-Based Storage
sponsored by Iron Mountain
DATA SHEET: To help companies reduce the costs of storing and managing inactive data, Iron Mountain has created an enterprise-class cloud-based storage archive service, the Virtual File Store (VFS). The VFS service is part of Iron Mountain's Storage-as-a-Service portfolio, which includes email management/archiving, eDiscovery, and data backup/recovery.
Posted: 16 Mar 2009 | Published: 16 Mar 2009

Iron Mountain

The EVA takes on NetApp and EMC
sponsored by Hewlett-Packard Company
WEBCAST: In their second comparative challenge, The HP StorageWorks EVA asked three teams of high school students who had never configured a storage array to run timed tests on EVA, NetApp and EMC to see which one is easiest to use. EVA was the clear winner
Posted: 16 Mar 2009 | Premiered: Mar 16, 2009

Hewlett-Packard Company

HP StorageWorks SAN Virtualization Services Platform: Simplifying Heterogeneous Storage Virtualization
sponsored by Hewlett-Packard Company
WHITE PAPER: Read this report and learn the results of ESG Lab testing of the HP StorageWorks SAN Virtualization Services Platform (SVSP) with a focus on the fundamentals of heterogeneous storage virtualization including centralized management, ease of use, thin provisioning, data mobility and capacity-efficient point-in-time snapshots.
Posted: 16 Mar 2009 | Published: 16 Mar 2009

Hewlett-Packard Company

Comparative Management Cost Survey: Workload Weighting for Mid-range Storage Array Administrators
sponsored by Hewlett-Packard Company
WHITE PAPER: Data center and storage administrators will find this white paper to be a valuable source on the time and cost savings, from a storage administrator's perspective, that can be realized from using StorageWorks EVA as compared to competing solutions from EMC and NetApp.
Posted: 16 Mar 2009 | Published: 23 Feb 2009

Hewlett-Packard Company

Three Must Haves for the Virtual Data Center
sponsored by Dell Compellent
WHITE PAPER: To take full advantage of server virtualization, and create a true virtual data center, IT departments need a holistic storage solution that allows fully shared resources, easy and automated storage classification and migration and complete data protection. Read this white paper for three "must haves" to achieve those objectives.
Posted: 09 Mar 2009 | Published: 01 Jan 2009

Dell Compellent

Virtually Effortless Backup for VMware Environments
sponsored by FalconStor Software
WHITE PAPER: VMware Consolidated Backup (VCB) improves virtual server backup, but there are a number of limitations. FalconStor Software has a solution that works with VCB while overcoming these limitations. Using this solution, you can quickly and efficiently back up virtual machines and retain transactional consistency, without management complexity.
Posted: 09 Mar 2009 | Published: 09 Mar 2009

FalconStor Software

NetBackup Solutions for VMware
sponsored by Symantec Corporation
WEBCAST: It is critical to choose the right data protection solution, one that is complete, one that not only protects the physical world, but is also finely tuned for the virtual world. The current release of NetBackup delivers award winning solutions for VMware.
Posted: 06 Mar 2009 | Premiered: Mar 6, 2009

Symantec Corporation

Best Practice for NDMP Backup Veritas NetBackup
sponsored by Symantec Corporation
WHITE PAPER: Customers are confronting the confusing number of options and configurations when it comes to backing up and restoring their network attached storage servers. This paper addresses this by describing the best practices for protecting and recovering NAS devices utilizing the Network Data Management Protocol.
Posted: 06 Mar 2009 | Published: 05 Jan 2009

Symantec Corporation

HP Dynamic Deduplication - achieving a 50:1 ratio
sponsored by Hewlett-Packard Company
WHITE PAPER: In 2008, HP introduced two products to the HP StorageWorks D2D Backup System Family. Both feature Dynamic deduplication based on an HP-patented algorithm that packs up to 50 times more backup data into the same disk footprint. This paper explains how Dynamic deduplication works and also establishes how a 50:1 deduplication ratio may be achieved.
Posted: 03 Mar 2009 | Published: 03 Mar 2009

Hewlett-Packard Company

Next Generation Management Software for Blade Environments
sponsored by HP & IntelĀ®
WHITE PAPER: One approach being used to reduce complexity and TCO in the data center is the implementation of new management software for blade servers, increasing business value and trimming expenses that vex IT budgets and divert important resources for transformational projects.
Posted: 03 Mar 2009 | Published: 03 Mar 2009

HP & IntelĀ®

Next-Generation Power and Cooling for Blade Environments
sponsored by Hewlett-Packard Company
TECHNICAL ARTICLE: In this technical brief, IDC examines HP Thermal Logic, a holistic approach to improving power and cooling efficiency in the IT infrastructure, designed to help companies reduce energy consumption, reclaim unused datacenter capacity, and extend the life of their datacenter.
Posted: 03 Mar 2009 | Published: 03 Mar 2009

Hewlett-Packard Company

Comparison of Performance and Ease of SAN Deployment using HP Simple San Connection Manager (SSCM) Solution
sponsored by Hewlett-Packard Company
WHITE PAPER: This report compares the performance of HP's 8Gb FC solution alone versus it's performance in conjunction with the Simple SAN Connection Manager. The results are remarkable! The Simple SAN Connection Manager took half the time to configure and 2/3rd fewer configuration step to deploy a FC SAN compared with configuring each component separately.
Posted: 03 Mar 2009 | Published: 03 Mar 2009

Hewlett-Packard Company

Storage Magazine: Recovery Site Options - Hot, Warm, or Cold
sponsored by Storage Magazine
EZINE: The January 2009 issue of Storage magazine is highlighted with a cover story on how best to select a disaster recovery planning site. This issue also includes features and columns on solid state disk, killing infectious data, consolidated archiving, fast disk drive rebuilds and green storage.
Posted: 26 Feb 2009 | Published: 26 Feb 2009

Storage Magazine

Primary Data Compression in Oracle Environments
sponsored by Storwize
WHITE PAPER: The amount of data that organizations need has escalated. Expanding storage capacity to keep up with data growth requires capital investment and ongoing expenses. This paper explores a StorWize solution with compression, performance, and data integrity advantages over other approaches, translating into financial benefits and assurance..
Posted: 25 Feb 2009 | Published: 25 Feb 2009

Storwize

Solid State Storage - A New Standard for Enterprise-Class Reliability
sponsored by Fusion-IO
WHITE PAPER: With throughput and seek times faster than disk arrays, data centers are including NAND flash as part of their server infrastructure. Fusion-io offers solid state storage solutions with NAND flash that provides integrity for data exceeding today's solid state storage solutions and surpasses enterprise-class rotating magnetic storage devices.
Posted: 16 Feb 2009 | Published: 16 Feb 2009

Fusion-IO
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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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