A pure-play cloud storage provider, Nirvanix is solely dedicated to this market. Gartner says that's great for companies looking for data-intensive storage needs, but could be a drawback for customers looking for an all-inclusive vendor that would provide compute services on top of a storage platform. Nirvanix has some appealing characteristics though, including the ability to have public, hybrid or on-premise Nirvanix-powered storage services, and an all-inclusive monthly billing cycle with premium support options, a clear aim for enterprise customers, but one that may turn away small and midsized businesses that may prefer the a la carte pricing.
More information on Nirvanix cloud storage.
Rackspace is another major player in the cloud storage ecosystem, with its Cloud Files service augmented by a robust set of accompanying services, including compute infrastructure and a CDN network powered by Akamai. For high-performance storage needs, it has Cloud Block Storage, which has high input-output capabilities. Rackspace works heavily on the OpenStack open source project and its services closely follow OpenStack developments. Because of its work in the OpenStack environment, Gartner says Rackspace public cloud storage services integrate nicely with OpenStack-powered on premise clouds, creating hybrid cloud services for customers.
Softlayer's Cloudlayer object storage system is based on the OpenStack Swift platform that accompanies a range of other services offered by Softlayer, including compute and CDN. Softlayer also has a storage-area network (SAN) offering and an international presence, with data center locations in its headquarters of Dallas, along with Amsterdam and Singapore. Its lack of support and turnkey deployment cycles, Gartner says, has meant that the product has not caught on wildly with the enterprise market yet though.
More information on Softlayer Cloudlayer.