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Are mainframes still relevant, and if so, in what contexts?
IBM just announced their new generation of mainframes- the zEnterprise System- allowing them to connect to other types of computers. Their take is that it will revolutionize managing data centers, reduce energy consumption, and increase performance. But I'm wondering if it will make things more complicated?
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3 Answers
Mainframe technology, maybe now more than ever, is relevant in tomorrow's IT environment. One way is with Linux virtualization. With IBM zVM, we have seen the elimination of hundreds of distributed servers running J2EE applications and enterprise RDBMS systems and have them replaced by virtual Linux guests. This platform has advanced capabilities beyond what is possible with some other virtualization platforms, and I am a fan of those where they fit into your strategic plan. Shared OS binaries allow for simplified operating system management and consistent platform delivery. The ability to allow servers not actively in use to go into hibernation mode is a great feature that saves money in both data center costs and allowing for the implementation of fewer resources. Beyond the fact that IBM z now has a place in the Linux space, it remains a great platform for centralized processing of enterprise workloads. Within one hardware platform it is not unreasonable to think an organization could host the majority of their core systems. More information can be found here: http://www.vm.ibm.com/
Rick's answer is outstanding. As a Data protection consultant I see mainframes in use all the time. Unlike Rick I do not have a great understanding of exactly what customers are using them for. Rick says they are a great platform for centralized processing of enterprise workloads. It is my understanding that they are the best platform for managing shared workloads. They are probably still the best platform for security.
Banking and military - fast transactions matter and security
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