JUN 1, 2005 1:00am ET

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Very Large Data Warehouses Challenge Backup


As the number of data warehouses at least one terabyte in size has grown from 21 percent in 2002 to 43 percent of enterprises in 2004, many have asked Forrester: Is it feasible to back up the database?1 Complaints have included: 1) the backup won't fit in our batch window, 2) we don't have a batch window, and 3) the mean time between failures (MTBF) of modern storage technology is better than ever - do we need a backup at all? The answer is unless the system is of no consequence to the business (in which case, why is it in operation?), a periodic backup must be made based on the time horizon in which the business process functions.

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