Data Migration

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WHY MIGRATE?

Whenever a PACS is replaced by a successor system, plans must be made for access to historical data in the existing legacy system. The choices are to either keep the legacy archive running including an interface to new system, or migrate the data to the new system. The size and complexity of the data transfer task is such that data migration is a project element that must be explicitly planned and budgeted for. Data Migration brings benefits of Simplicity, Economics and Reliability that avoid the issues and problems detailed below.

Why not keep the old archive?

In most cases, it is technically feasible to simply keep the old system and query it for images when needed. However, a number of factors speak against this option:

Complexity

Economics

Because of plummeting costs of disk storage in recent years, retaining the legacy system generally entails costs that generally exceed the expense of additional storage on the new system.

Reliability

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