Data warehouses with as much as 100 to 200 terabytes of raw data will be operational by next year, performing nearly 2,000 concurrent queries and occupying nearly 1 petabyte (1,000 terabytes) of disk space. In the same time period, transaction-processing databases will handle workloads of nearly 66,000 transactions per second.
Those predictions are in a new report from the Winter Corp. consulting firm, based on surveys of operators of some of the largest decision-support (data warehouse) and transaction-processing databases in the world. "We're moving into the area, in the next year or two, of petabyte systems," president Richard Winter says.
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