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Archival Storage
I gave a talk at the Berkeley I-school's Information Access Seminar entitled Archival Storage . Below the fold is the text of the talk with...
The rest of their cost evaluation is somewhat hand-wavy, as is natural for a system that isn't yet in production: The Silica read drives use polarization microscopy, which is a commoditized technique widely used in many applications and is low-cost. The fundamental idea behind LOCKSS was that, given a limited budget and a realistic range of threats, data would survive better in many cheap, unreliable, loosely-coupled replicas than in a single expensive, durable one. Brian Wilson, CTO of BackBlaze pointed out eleven years ago that in their long-term storage environment"Double the reliability is only worth 1/10th of 1 percent cost increase".
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