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Glossary for JSC (A-Z)

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Data Migration (HSM)

TSM-HSM (Hierarchical Storage Management) is used for data migration at JSC. Data migration is the process of moving data that is not used for a defined time from high level storage e.g. disk to low level storage e.g. tape and leaving a stub file in the Unix file system for data management commands. Data is recalled automatically on data access.

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