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UK Records Office: Let's Get Digital: Page 3 of 3

"Cost, cost, cost," says Sharp. "The perceived wisdom for 100 Tbytes is that disk is still very expensive... and 90 percent of this stuff probably won’t be accessed, much like the old paper archives." Disk would be overkill for many of these documents, he says.

Right now, the records office has just 2 Tbytes of storage capacity, but it anticipates scaling up to 100 Tbytes over time.

Tessella is hoping to win a support contract on top of the integration work involved in building the archive for PRO. "Inevitably, when they start using this system they will want to refine it and make it more sophisticated," says Sharp. "Files will need to be labeled better as the system grows, for it to stay efficient."

— Jo Maitland, Senior Editor, Byte and Switch