Thursday Oct 17, 2013

So what is Active GridLink for RAC?

I had referred to Active GridLink for RAC in my blog yesterday and since then got several questions on this topic. So I decided to re-visit Active GridLink. With the release of version 11g, Oracle WebLogic Server started to provide strong support for the Real Application Clusters (RAC) features in Oracle Database 11g, minimizing database access time while allowing transparent access to rich pooling management functions that maximizes both connection performance and availability. WebLogic is the only application server in the marketplace which has been fully integrated and certified with Oracle Database RAC 11g without losing any rich functionality. Active GridLink provides Fast Connection Failover (FCF), Runtime Connection Load-Balancing (RCLB), and RAC instance graceful shutdown. With the key foundation for providing deeper integration with Oracle RAC, this single data source implementation in Oracle WebLogic Server supports the full and unrestricted use of database services as the connection target for a data source.


For more details and to understand how our customer NEC leverages this capability, read the whitepapers on this topic.

Get in depth ‘how-to’ details from this youtube video from our resident expert, Frances Zhao.

Monday Oct 14, 2013

Whitepaper: The Department of Defense (DoD) and Open Source Software

With tight budgets organizations throughout the U.S. Department of Defense (DoD) see the appeal of the open source model. Open source software (OSS) includes operating systems, applications, and programs in which the source code is published and made available to the public, enabling anyone to copy, modify and redistribute that code without paying royalties or fees. Open source “products” typically evolve through community cooperation among individual programmers as well as very large companies. An open source license permits anybody in the community to study, change and distribute the software for free and for any purpose.

At first glance it might seem that DoD organizations can avoid buying commercial software products simply by starting with open source software and developing their own applications. As this white paper shows, total cost of ownership (TCO) for open source software often exceeds that of commercial software. While minimizing capital expenses by acquiring “free” open source software is appealing, the up-front cost of any software endeavor represents only a small fraction of the total outlay over the lifecycle of ownership and usage. And while cost effectiveness is important, it must be carefully weighed against mission-effectiveness.

This paper seeks to answer two questions:

1. What are the tangible and intangible costs that the government should bear under an open source licensing model?

2. What are the tradeoffs and risks associated with open source licensing models in relation to commercially available software?

Download this whitepaper today to ensure you are considering the various cost drivers of owning and operating an application environment.

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