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Access "eBay keeps up with evolving storage demands"

Published: 20 Oct 2012

Few businesses have grown as rapidly as eBay. Its founder and chairman, Pierre Omidyar, built the online trading bazaar in his living room in one weekend in September 1995 with hardware that could be purchased at Fry's Electronics. Every sale item was a separate file, generated by a Perl script, and the system maxed out at 50,000 active items. Search functionality was nonexistent and storage was internal, directly attached. Fast forward to 2007 and eBay now has 212 million users and 584 million listings. On a typical day, there are 1 billion page views and 26 billion SQL queries, which averages out to 6,000 SQL transactions per second, per database. William Crosby-Lundin, eBay's SAN and high-availability infrastructure manager, says only 12 people manage eBay's storage, which consists of 13 discrete SANs that each offer a different quality of service for performance, availability and cost. Approximately 2 petabytes (PB) of raw storage (eBay adds 10TBs, 75 LUNs and performs six database moves each week) support 1,000 SAN-connected hosts and more than 600 ... Access >>>

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