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Virtual Mainframe - Legacy Application Rehosting

Virtual Mainframe - Legacy Application Rehosting

Abstract

One size doesn’t fit all in the context of legacy modernization. There is no single, pre-packaged solution that is right for everyone seeking to modernize their existing mainframe applications. While the traditional legacy modernization and migration methods have their place, “Legacy Rehosting” makes a strong case for itself as a viable modernization solution because of the benefits it provides in terms of reduced migration risk, short implementation time frame, faster ROI and greatly reduced TCO.

“Legacy Rehosting” works for enterprises irrespective of their mainframe footprint. It can be leveraged either to completely replace their mainframes or for partial workload offloading from the mainframe. In either case the end result is a sizable reduction in their overall mainframe costs.
 

Excerpts from the Paper

Legacy applications usually exist within an ecosystem of interfaces, tools and utilities on the mainframe which they actively interact with. Legacy applications, in general, also do not exist on the mainframe in isolation and as such share certain application assets and the mainframe resources with other applications. The presence of such interactions and dependencies makes it imperative that any rehosting exercise focuses on not just the application inventory but also on providing a similar eco-system on the target platform for the application to run in.
 

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