Walmart goes to the cloud to close gap with Amazon

SAN BRUNO/SUNNYVALE, Calif. (Reuters) - One of Walmart Inc’s best chances at taking on Amazon.com Inc in e-commerce lies with six giant server farms, each larger than ten football fields. These facilities, which cost Walmart millions of dollars and took nearly five years to build, are starting to pay off. The retailer’s online sales have been on a tear for the last three consecutive quarters, f...