Keynote: Opening Remarks
summary
CERN describes operational numbers and real deployments: SEF provides block storage since 2013 and now underpins hundreds of services across three geographically distributed sites with multiple availability zones and a combined capacity of 2.5 exabytes (disk plus tape), backing archives of roughly 1 exabyte generated since 2008. A testbed orders of magnitude larger than any prior SEF install drove scale testing, the group operates ~100,000 disk drives, and SEF is part of the business continuity and disaster recovery strategy.
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