Access "Automate data migration"
This article is part of the Vol. 5 No. 9 November 2006 issue of Salary survey reveals storage skills are in demand
Moving seldom-accessed data from primary storage to less costly storage is a good idea. HSM products can do the job, but each one is closely aligned to a specific backup software product and file system. Sir Isaac Newton's first law--the law of inertia--is as applicable to the world of data management as it is to our planet. Experts estimate that 60% to 80% (or more) of organizational data is never accessed after it's created; files often remain at rest, untouched and unmoved from companies' most expensive storage arrays. Hierarchical storage management (HSM) software can force the migration of these files to more economical resting places while keeping them accessible and retrievable. HSM software lets users set policies to migrate files from primary disk to other types of storage media based on vendor-provided and user-created policies. These migration policies designate which files to migrate to what storage media, and when these files should be migrated. HSM software is based on three architectures: Backup software. Symantec Corp.'s Veritas NetBackup ... Access >>>
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Moving seldom-accessed data from primary storage to less-costly storage not only saves money, but can also improve the performance of applications. Hierarchical storage management (HSM) software can help automate the migration of files, but HSM products vary in the way they approach the task. So it's important to identify the requirements of an HSM product before making a choice.
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