Spotlights

Live servers jumped more than fivefold from 6 million in 1996 to a stunning 32 million globally in 2007. They were mostly distributed servers. This sprawling flood of servers had dire effects. Blame the RISC-UNIX and x86/x64 cartel vendors for hyping and pushing these distributed servers to users. This last decade of wild proliferation in scale-out distributed computing drove the huge increases in IT operating costs detailed below…

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IBM’s CICS transaction processing software has been enhanced in recent releases to extend its support for the Open Transaction Environment (OTE). This article describes the background and history of OTE, and offers some examples and guidance on several problems that may be encountered when exploiting OTE. This article also describes how to prepare your CICS systems and applications to efficiently exploit OTE.  

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Many network security technologies are available these days—from tried and true staples such as network firewalls to newer developments such as Intrusion Prevention Systems (IPSs) and the new anomaly detection and Data Loss Prevention (DLP) technologies. Web Application Firewalls (WAFs) and IPSs are gaining some ground as forces such as regulatory compliance drive end-to-end security requirements. enterprise acceptance for some of the other newcomer technologies varies, but it’s clear that network firewalls are here to stay. They remain among the most important core technologies in the network security arsenal, which makes it important to understand how, when, and where to deploy them in enterprise solutions encompassing the mainframe as a core component…

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Tape continues to be the lowest- cost option for data storage and is an essential component of data backup and disaster recovery. Recent advances in tape technology provide even more compelling value—significantly decreasing costs and lowering access speeds. Virtual tape systems ensure the use of the full tape media, DASD caches provide access to tape data at DASD speeds, and robotic drives decrease mount speed when real mounts are required…

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The quantity of new enterprise application workloads being placed on the mainframe is growing, and the new IBM System z10 is playing a key role. In the choice between using a mainframe or distributed servers, the mainframe has many advantages, especially in today’s tough economy where cost-savings are critical…

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Indecision reigns in IT departments. Do I implement shared workloads on the mainframe or virtualized images on distributed systems? How do I evaluate the relative value of governance vs. ease of development as core issues? How do I reduce run-time costs from 80 percent of the IT budget to 30 percent? Can I move to capacity planning that supports the ability to make good choices about how to use the appropriate platform for a specific job?…

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