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U of Michigan Reveals Google-Based Digitization Project: Page 2 of 4

Each digitized book is approximately 55 Mbytes in size, downloadable at a rate of 3 Mbytes per second, 24 hours a day, seven days a week. “Without Google’s support this never would have happened,” says Wilkin, explaining that, on its own, the university could only scan around 15,000 books a year.

In an attempt to store the current influx of digital data, Wilkin and his team deployed 200 Tbytes worth of clustered storage from Isilon last fall. The 32 IQ 9000 and EX 9000 systems are split between the University of Michigan’s main data center in Ann Arbor and a disaster recovery site in Bloomington, Ind., linked by Isilon’s SyncIQ replication software.

”We want to ensure that this body of cultural heritage will be around for a long time,” says Wilkin, explaining that the library’s collection includes a rare edition of Chaucer’s Canterbury Tales and collections of early twentieth-century art monographs.

The Isilon hardware replaced a mixture of RAID systems from different vendors, according to the exec. “It’s a whole scaling thing -- when you get into hundreds of Tbytes for a single repository, you need good storage management,” he says. “Even with our best RAID systems, in the past, we would have been putting out fires all the time.”

The Wolverines’ RAID systems have now been deployed elsewhere within the University’s IT infrastructure, and Wilkin is already looking to expand the Isilon cluster.