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Powering Linux in the Data Center [ Source: Symantec and DLT Solutions ]

March 2013- Many IT professionals are drawn by the savings that Linux® brings to the data center but are concerned about the potential uptime and data protection risks that arise from trusting their business-critical applications to "free" or native software. Native Linux solutions also prove challenging with required manual scripting and lack of automated operations and management. For business-critical data center applications, the complete line of Symantec high availability, data protection, backup and recovery, disaster recovery and ...

Accurate Time for Linux Applications [ Source: Symmetricom ]

October 2012- This white paper explores the challenges in delivering sub-microsecond accurate time to a Linux program, and it will present IEEE 1588 Precise Time Protocol (PTP) solutions and test data showing how to overcome those challenges.

Cloud Infrastructure Matters [ Source: Red Hat ]

September 2012- New IT technologies and abstractions, such as cloud computing, layer on top of existing ones.This may make the foundational layers less visible, but they remain just as important (or even more so).

The capabilities of a specific operating system aside, the operating system as a technology layer remains highly relevant in a cloud computing world. It insulates the application from lower-level technology (such as hardware) changes, provides a rich set of services ...

Secure Virtualization with sVirt [ Source: Red Hat ]

June 2012- Red Hat Enteprise Virtualization 3.0 makes implementing virtualized servers easier and more cost-effective, and it won't lock you in. In addition to holding top virtualization benchmarks for performance and scalability of Windows and Linux workloads, Red Hat Enterprise Virtualization provides unmatched security.

This paper discusses Red Hat Secure Virtualization (sVirt), the industry's most comprehensive security solution for virtualization. With its unique kernel-level architecture and NSA-developed security mechanism, sVirt leads to a higher level of ...

RHEV Sets Stage for VMWare Challenge [ Source: Red Hat ]

June 2012- In a February 2012 review, well-known enterprise technology information publication eWEEK wrote that Red Hat Enterprise Virtualization 3.0 is set to challenge VMware at its own game and discusses why Red Hat is now being considered an enterprise virtualization market contender.

Built from the long-standing stability of the Red Hat Enterprise Linux kernel, Red Hat Enterprise Virtualization 3.0 is a strategic alternative virtualization solution and is the first enterprise-ready, fully open source virtualization platform. Designed for ...

Red Hat Enterprise Virtualization Use Case: Server Consolidation [ Source: Red Hat ]

June 2012- By transitioning workloads from physical servers to virtual machines, datacenter consolidation significantly increases the utilization and agility of computing resources while reducing operational costs with more efficient use of power and space. Capital cost savings in server hardware is the most immediate benefit and can range in a reduction of 40-75 percent. Operations teams also benefit from the reduced requirements for space and power and with the improved on-going management of their servers. For new ...

IDC Whitepaper: Red Hat Enterprise Virtualization [ Source: Red Hat ]

October 2012- As the number of virtual workloads surpass the number of physical workloads with the maturing or the virtualization market, IDC data indicates that as many as one third of virtualization customers are planning to use multiple hypervisors over the next year.

This whitepaper discusses why agencies are pursuing a multi-vendor strategy for virtualization software and how Red Hat, with Red Hat Enterprise Virtualization 3.0, is quickly emerging as a leading strategic alternative and is ...

Best Practices for Migrating Linux x86 Applications to Linux on IBM Power Systems [ Source: IBM ]

November 2011- Consolidating dedicated and virtualized workloads can reduce costs throughout your infrastructure, while dramatically improving your ability to meet changing processing demands. Read this white paper to find out IBM's recommended best practices in the selection and migration of Linux/x86 workloads and applications to IBM Power Systems servers.

Consolidating SAP Applications to Linux on Power by IDC [ Source: IBM ]

November 2011- IDC studied a group of enterprises that had deployed SAP applications on IBM Power Systems servers running Linux server operating environments and had been working with those systems for several years:
Advantages:
1)Annual benefits totaled $25,000 per 100 users For a large organization with 10,000 users, this would amount to more than $2 million in benefits.
2)The utilization rate for servers more than doubled, from 34% to 70% and many more

Tips to Improve Network I/O Performance on Virtualized Servers [ Source: Solarflare Communications ]

August 2011- Traditionally, virtualized servers have relied on the hypervisor to fully manage data flow, providing powerful services and management capabilities, but also introducing overheads that dramatically impact network I/O performance. The new PCI standard, single-root I/O virtualization, or SR-IOV, has emerged to address these performance issues.

This solution brief explains how to cost-effectively improve network I/O performance on virtualized servers and comply with the new standard.

Server Virtualization: Achieve Higher I/O Performance and Maintain Hypervisor-based Services [ Source: Solarflare Communications ]

August 2011- Citrix partnered with Solarflare to develop a unique unified approach to SR-IOV that delivers unprecedented cut through I/O performance while maintaining full hypervisor-based management.

As a result, virtualized servers can now benefit from accelerated network performance as well as hypervisor-based services and management capabilities.

Learn how to achieve higher I/O performance, scale to consolidate more workloads, and maintain efficient hypervisor-based services and management.

Red Hat Reference Architecture Series: Scaling Java Applications in a Red Hat Enterprise Virtualization Environment [ Source: Red Hat ]

December 2010- †This paper describes the performance and scaling of industry-standard Java applications running in Microsoft Windows Server 2008 guests under Red Hat Enterprise Linux 5.4 using the KVM hypervisor. The host system was deployed on a Dell PowerEdge R710 G6 server equipped with 72 GB of RAM and comprising dual sockets each with a 2.66 GHz Intel Xeon X5550 (Nehalem) processor with support for hyper-threading technology, totaling 8 cores and 16 threads.

the paper illustrates the low virtualization overhead of ...

KVM - Kernal Based Virtual Machine [ Source: Red Hat ]

December 2010- Virtualization has begun to transform the way that enterprises are deploying and managing their infrastructure, providing the foundation for a truly agile enterprise, so that IT can deliver an infrastructure that is flexible, scalable, and most importantly economical by efficiently utilizing resources.

The x86 architecture has proven to be the dominate platform in enterprise computing, moving from its humble beginnings in desktop systems to now, powering the large enterprise applications that run businesses ...

Red Hat Enterprise Virtualization for Servers 2.2: Feature Matrix [ Source: Red Hat ]

December 2010- †Server virtualization offers tremendous benefits for enterprise IT organizations ó server consolidation, hardware abstraction, and internal clouds deliver a high degree of operational efficiency. However, today, server virtualization is not used pervasively in the production enterprise datacenter. Some of the barriers preventing wide-spread adoption of existing proprietary virtualization solutions are performance, scalability, security, cost, and ecosystem challenges.

Red Hat Enterprise Virtualization for Servers is an end -to-end virtualization solution that is designed to overcome ...

Linux Data Replication Methods for High Availability [ Source: RapidScale Clusters ]

July 2010- In Linux system administration, it is often critical to replicate data to another server for high availability. There are several possible methods, including simple asynchronous copies, developing change detection software, and using synchronous cluster file systems. These methods all have pros and cons. Equally important is the kind of data to be replicated. Large files, small files, and frequently changing files impose different requirements. These issues are discussed, and in conjunction with the different methods, ...

SAP Migration Guide: Moving ERP 6.0 From Solaris To Red Hat Linux [ Source: Red Hat ]

May 2010- The process of migrating SAP ERP 6.0 and IBM DB2 LUW version 9.1 from Solaris 10 Enterprise on Sun Fire T2000 to Red Hat Enterprise Linux Advanced Platform for SAP applications on IBM System x3650 M2 with Intel Xeon processors is relatively straightforward. This guide will help you do the up-front planning and avoid potential problems. You can expect to perform a basic installation and migration in less than one day.

Linux and Solaris An Analysis of Two Enterprise Operating Systems [ Source: Red Hat ]

February 2010- This paper by the Robert Frances Group outlines the important differences between a Solaris and Linux operating system. It covers the differences in vendor community strategies, market position and direction, and technical features that IT executives should consider when comparing a Linux and Unix Enterprise operating system.

Advantage Of AFS Over NFS [ Source: TCS ]

February 2010- Andrew File System is a distributed file system that enables co-operating hosts (clients and servers) to efficiently share file system resources across both local area and wide area networks. It is based on a distributed file system originally developed at the Information Technology Center at Carnegie-Mellon University that was called the Andrew File System. According to TCS, AFS scales better than NFS. It performs well in small and very large installations, provides excellent performance on ...

Quick Start Guide: Moving from Solaris to Red Hat Enterprise Linux [ Source: Red Hat ]

February 2010- Learn the differences between Solaris and Red Hat Enterprise Linux to help application developers port code. This paper will cover differences in the shell environment, using the RPM package manager, and using the GNU development tools. Itís meant to get Solaris developers working on Red Hat Enterprise Linux quickly.

Red Hat Enterprise Linux: Your Solaris Alternative [ Source: Red Hat ]

February 2010- Review key features and benefits of Solaris and Red Hat Enterprise Linux. Learn why Red Hat Enterprise Linux is an ideal solution for enterprises facing Sun and SPARCís uncertain future.

Whether you are considering launching a new IT production environment or migrating legacy environments to next-generation platform.

Axigen Ajax WebMail Third-party Web Content [ Source: AXIGEN - Gecad Technologies ]

December 2009- This white paper discusses the features and benefits that the Ajax WebMail interface of Axigen Mail Server offers in terms of third-party content delivery, including their impact on user productivity, targeted information delivery, creation of value added services or advertising.

Security: The Central Focus on Red Hat Enterprise Linux 5 [ Source: Red Hat ]

October 2009- Red Hat Enterprise Linux has been designed by, and for, the most security-conscious organizations in the world. Accordingly, security has always been a central focus of the Red Hat Enterprise Linux platform. This paper describes how Red Hat has led the way in developing new security technology, making a secure operating system architecture an affordable, mainstream solution. This paper will explain how Red Hat:
● Lowers the cost of security maintenance
● Continually looks for ...

Red Hat Enterprise Linux: The Clear Leader in Enterprise Web Applications [ Source: Red Hat ]

October 2009- A number of leading technology firms, including IBM, HP, and SAP, invited Red Hat to participate in industry-standard benchmarks that compared Red Hat Enterprise Linux to Microsoft Windows and other operating systems in real-world conditions. The results of the 2009 benchmark studies reveal that Red Hat Enterprise Linux:
● Is the best platform for online transaction processing
● Achieves more business processes per minute and enables more processing with less hardware at the business logic tier<...

SPECweb2005 Benchmark Results Using Red Hat Enterprise Linux 5 [ Source: Red Hat ]

May 2009- In the latest SPECweb2005 benchmark, Red Hat Enterprise Linux 5.3 running on a HP Proliant DL380 G6 achieved the best SPECweb2005 result to date, with a score of 71,045. SPECweb2005 is a software benchmark product developed by the Standard Performance Evaluation Corporation (SPEC), a non-profit group of computer vendors, system integrators, universities, research organizations, publishers, and consultants. It is designed to measure a system's ability to act as a Web server servicing static and dynamic page requests.

SAP Affirms RHEL Virtualization Is Ready for Prime Time [ Source: Red Hat ]

May 2009- In thorough testing, SAP has affirmed that Red Hat Enterprise Linux (RHEL) Virtualization is ready for production use with SAP. It scales well, with close to linear performance, handles 100 percent oversubscription, and uses the available I/O bandwidth extremely well.

Getting Started With Cloud Computing With Red Hat [ Source: Red Hat ]

May 2009- Change the economics of computing by paying only for the infrastructure software services and capacity that you actually use. Red Hat Enterprise Linux for cloud computing makes it easy to develop, deploy, and manage your new and existing applications in a virtual computing environment. You can increase or decrease capacity within minutes, removing the need to over-buy capacity to handle periodic spikes in demand.

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