In the light of the recent Riak CS, the Riak-based, multi-tenant, S3 compatible cloud storage platform announcement, check this PR announcement, dated March 11th 2011, from Gemini Mobile Technologies:
Gemini Mobile Technologies (“Gemini”) announced today that several Internet Service Providers (ISPs) and Cloud Service Providers (CSPs) have started trials of its Cloudian™ software. Cloudian allows ISPs and CSPs to provide Amazon S3 compliant “Cloud Storage on Demand” services to web service providers and enterprise applications. Applications developed for the Amazon S3 API will work on a Cloudian system without modification. Cloudian allows the same physical storage cluster to be shared by thousands of tenant users, with flexible billing based on usage and traffic. A fully redundant Cloudian service requires only 2 PCs and scales to hundreds of PCs in multiple datacenters.
Original title and link: Cloudian: Cassandra-Based Amazon S3 Compliant Multi-Tenant Cloud Storage System ( ©myNoSQL)