CIO.com: Enterprises like some parts of the cloud storage model, such as paying only for what they need and not buying their own equipment. However, they have a lot of security and availability concerns. Hitachi Data Systems (HDS) is attempting to offer the best of both worlds by introducing a cloud storage service that resides in an enterprise's own data center.
The Hitachi Cloud Service for Private File Tiering lets companies pay by the terabyte for storage that HDS sets up and manages on-site. That means the company can access stored data via the local network instead of a WAN and has greater control over the physical security of the servers. On the down side, companies will then also need to provide space and electricity for the servers.