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High Availability

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ALSO CALLED: Highly Available Computing, Data Availability, HA, High-availability, Availability
DEFINITION: In information technology, high availability refers to a system or component that is continuously operational for a desirably long length of time. Availability can be measured relative to "100% operational" or "never failing." A widely-held but difficult-to-achieve standard of availability for a system or product is known as "five 9s" (99.999 percent) availability.Since a computer system or a network  … 
Definition continues below.
High AvailabilityReports
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Virtualization with iSCSI – Understanding the Storage Needs of Virtualized Environments
sponsored by Overland Storage
WHITE PAPER: Planning a virtualization deployment can be a challenging task, particularly when it comes to the storage infrastructure. Read this white paper to develop a better understanding of storage’s role in virtual environments.
Posted: 02 Jun 2010 | Published: 02 Jun 2010

Overland Storage

Virtual Data Center E-Zine - Volume 23: Backup Strategies for Virtual Servers
sponsored by SearchDataCenter.com
EZINE: With the number of virtual machines increasing in the data center, backing up servers today has become much more than just copying data files. Take a look at how virtualization technologies have changed traditional backup strategies and examine some of the approaches that protect against issues like accidental file loss and server crashes.
Posted: 01 Jun 2010 | Published: 01 Jun 2010

SearchDataCenter.com

A Systems Approach to Networking Improves Availability, Lowers TCO
sponsored by Cisco Systems, Inc.
ANALYST REPORT: This report examines the drivers of network change, defines a systems approach to networking and then details the strategy used by Cisco, the market leader in enterprise networking, to deliver on this vision.
Posted: 27 May 2010 | Published: 01 Nov 2009

Cisco Systems, Inc.

Why Should Companies Take a Closer Look at Business Continuity Planning?
sponsored by Datalink
WHITE PAPER: Over the last 30 years, companies have significantly changed their approach to ensuring that their businesses can continue to run in the event of a catastrophe. Read this white paper to learn how business continuity and disaster recovery solutions can help you to develop a more robust enterprise.
Posted: 27 May 2010 | Published: 26 May 2010

Datalink

HP-UX 11i on Integrity servers: HP value for Solaris users
sponsored by Hewlett-Packard Limited
WEBCAST: Join HP-UX 11i Marketing Manager Suzanne LaForge as she discusses HP-UX 11i on Integrity servers and HP's value for Solaris users.
Posted: 19 May 2010 | Premiered: Jan 1, 2010

Hewlett-Packard Limited

E-Book: IT Handbook - Backup and Recovery
sponsored by Vizioncore Inc.
EBOOK: Before you begin researching all of the available backup and disaster recovery technologies on the market, get a handle on your business needs. Read this e-book to learn about developing a backup and disaster recovery strategy, implementation guidelines for backup and dr, remote backups, and testing and verifying your backups.
Posted: 30 Apr 2010 | Published: 30 Apr 2010

Vizioncore Inc.

Four Things You Should Know About Cache Battery: Why Cache Battery Life Matters to Your Business
sponsored by CCSS
WHITE PAPER: Cache Battery life may be more important than you think. Learn why cache battery matters to your business, the challenge of cache battery management, the consequences of a failed battery, and the value of cache battery monitoring.
Posted: 27 Apr 2010 | Published: 27 Apr 2010

CCSS

Extending the Lifecycle and Lowering the TCO of your SAN
sponsored by D-Link
WHITE PAPER: If you are in charge of IT at a mid-size enterprise, you’re probably about to bite the bullet to add a new Storage Area Network (SAN). Why? The simple answer is that it’s a combination of challenges and opportunities. Read this paper to learn why any organization that runs more than one business server application should consider a SAN.
Posted: 26 Apr 2010 | Published: 26 Apr 2010

D-Link

An ERP Platform Strategy Based on Industry-standard Servers
sponsored by Dell, Inc. and Intel®
WHITE PAPER: Many large organizations have a centralized enterprise resource planning (ERP) environment based on proprietary mainframes or RISC-based systems. In contrast, Intel IT has successfully implemented a decentralized ERP environment that is based on industry-standard servers and supports more than 10,000 active users. Read this paper to learn more!
Posted: 07 Apr 2010 | Published: 01 Mar 2010

Dell, Inc. and Intel®

Presentation Transcript: Stuff Happens - How to Assess Risks and Set Objectives for Business Continuity Plans 
sponsored by Marathon Technologies
PRESENTATION TRANSCRIPT: Disaster recovery (DR) plans become more complicated and difficult when businesses try to identify all risk scenarios and assign quantitative value to the likelihood of them happening. This transcript will guide you through the process of determining what needs to be protected within your business data and infrastructure.
Posted: 02 Apr 2010 | Published: 02 Apr 2010

Marathon Technologies

Dell PowerVault MD3000i high-availability testing on Windows Server 2008 R2 and Hyper-V
sponsored by Dell and Microsoft
TEST RESULTS: Dell Inc. (Dell) commissioned Principled Technologies (PT) to determine whether the Dell™ PowerVault™ MD3000i iSCSI storage array in a high-availability configuration can support small (200-user) and medium (500-user) organizations simultaneously running a variety of virtualized workloads in both an optimized and degraded system state.
Posted: 01 Apr 2010 | Published: 01 Oct 2009

Dell and Microsoft

Data Growth Challenges Demand Proactive Data Management
sponsored by IBM
WHITE PAPER: Data growth is one of the most significant challenges – and opportunities - facing organizations today. Those that learn to leverage the explosion of important new information sources can gain dramatic competitive advantage as others lag.
Posted: 24 Mar 2010 | Published: 24 Mar 2010

IBM

Presentation Transcript: Smart Tactics to Build Storage Solutions in Virtual Environments
sponsored by PC Connection
PRESENTATION TRANSCRIPT: Storage virtualization has become a prominent solution in the IT world by offering continued benefits and a lower cost infrastructure. This presentation transcript examines the benefits and top challenges with storage virtualization and approaches to build storage solutions for virtual environments.
Posted: 19 Mar 2010 | Published: 19 Mar 2010

PC Connection

Presentation Transcript: Conquering Your Top 5 Virtualization Management Headaches
sponsored by Zenoss, Inc.
PRESENTATION TRANSCRIPT: In this presentation transcript, learn how to handle the management challenges that come with a virtualized environment. Find out how to address your top five virtualization issues, including effectively monitoring resource performance and availability. Discover ways to minimize data center disruptions for optimal performance.
Posted: 18 Mar 2010 | Published: 18 Mar 2010

Zenoss, Inc.

Five Essential Considerations for Exchange 2007® Implementations
sponsored by Dell India
WHITE PAPER: Read this white paper to learn about five essential considerations administrators should address while planning for any Exchange 2007 migration.
Posted: 17 Mar 2010 | Published: 01 Aug 2008

Dell India

Smarter Deduplication with CommVault® Simpana® Software
sponsored by CommVault
WHITE PAPER: Business and IT are both struggling with how to protect, monitor, maintain and recover business-critical data when it continues to grow at 30-50 percent per year. Read this white paper to learn how CommVault® Simpana® software provides a holistic approach to data deduplication.
Posted: 08 Mar 2010 | Published: 08 Mar 2010

CommVault

Replication for Dummies
sponsored by Sybase, an SAP company
EBOOK: IT organizations face many data challenges. Data distribution rates and the quantity of data that consumers use is expanding exponentially in the global marketplace. Read this e-book to gain an understanding of the Sybase Replication Server and learn a series of best practices to consider when implementing a database replication strategy.
Posted: 08 Mar 2010 | Published: 05 Mar 2010

Sybase, an SAP company

Advanced Virtualization E-Book - Chapter 3: Essentials of High-Availability Planning
sponsored by Dell, Inc. and Intel®
EBOOK: Design, management and testing can make or break high availability in your virtual environment. Chapter 3 of this Advanced Virtualization E-Book discusses the essentials of high availability planning.
Posted: 05 Mar 2010 | Published: 05 Mar 2010

Dell, Inc. and Intel®

Doubling the Value of Virtualization with HP ProLiant G6 Servers and HP StorageWorks
sponsored by Hewlett-Packard Company
CASE STUDY: When Opus Interactive needed to provide customers with a cost-efficient, highly available pay-as-you-grow server and storage model, they turned to HP ProLiant server blades, the HP LeftHand P4000 SAN, and VMware. As a result there was 75% reduction in customer cost per server and higher availability.
Posted: 03 Mar 2010 | Published: 03 Mar 2010

Hewlett-Packard Company

Dell EqualLogic PS Series SAN Offer Robust, High Availability Infrastructure for Microsoft Windows Server 2008 R2 Hyper-V
sponsored by Dell and Microsoft
DATA SHEET: Dell™ EqualLogic™ PS Series storage area network (SAN) arrays offer a solid shared storage foundation for a virtualized data center that can enable organizations to take full advantage of the high-availability features included with Windows® Server 2008 R2 Hyper-V™.
Posted: 02 Mar 2010 | Published: 02 Mar 2010

Dell and Microsoft

Virtual Data Center E-Zine - Volume 20: Critical Decisions for Virtualization Storage
sponsored by SearchDataCenter.com
EZINE: More and more data centers are moving toward virtualization because of the flexibility it offers, but cost and lack of skills are holding back some deployments. Find out how to use ROI and VARs to make the case for virtualization so you can start taking advantage of today's newest technologies.
Posted: 02 Mar 2010 | Published: 02 Mar 2010

SearchDataCenter.com

CA ESP Workload Automation Software: Measuring Business Impact and ROI
sponsored by CA Technologies.
ANALYST REPORT: This IDC White Paper presents the results of an IDC study, sponsored by CA, to quantify the financial benefits of using CA ESP Workload Automation products.
Posted: 25 Feb 2010 | Published: 01 Sep 2009

CA Technologies.

Presentation Transcript: Helping IT Gain Efficiencies and Reduce Costs - Microsoft System Center
sponsored by Microsoft
PRESENTATION TRANSCRIPT: In this presentation transcript, experts Sacha Dawes and Kenon Owens discuss topics including best practices to monitor virtual and physical workloads, meet high availability needs, improve CMBD, asset management and integrating a self-managing solution to accelerate troubleshooting and problem resolution.
Posted: 24 Feb 2010 | Published: 23 Feb 2010

Microsoft

Webinar: Business Intelligence in the Cloud
sponsored by RightScale
WEBCAST: In this webinar, you will be introduced to the first business intelligence solution stack running on the cloud. This cutting-edge solution has been created by business intelligence industry leaders Jaspersoft, Talend and Vertica with the leader in cloud computing management, RightScale.
Posted: 24 Feb 2010 | Premiered: Feb 24, 2010

RightScale

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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HIGH AVAILABILITY DEFINITION (continued): …  consists of many parts in which all parts usually need to be present in order for the whole to be operational, much planning for high availability centers around backup and failover processing and data storage and access. For storage, a redundant array of independent disks (RAID) is one approach. A more recent approach is the storage area network (SAN).Some availability experts emphasize that, for any system to be highly available, the parts of a system should be well-designed and thoroughly tested before they are used. For example, a new application program that has not been thoroughly tested … 
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