Cloud Storage Specs Approved

The International Organization for Standardization (ISO) has ratified the Cloud Data Management Interface (CDMI), a set of protocols defining how businesses can safely transport data between private and public clouds.

The Storage Networking Industry Association’s (SNIA) Cloud Storage Initiative Group submitted the standard for approval by the ISO last spring. CDMI is the first industry-developed open standard specifically for data storage as a service.

“There is strong demand for cloud computing standards and to see one of our most active consortia partners contribute this specification in such a timely fashion is very gratifying,” Karen Higginbottom, chairwoman of the ISO committee, said in a statement. “The standard will improve cloud interoperability.”

The CDMI specification is a way to create an interface for accessing data in the cloud by preserving metadata about information that an enterprise stores in the cloud. With metadata associated with the information, companies can retrieve data no matter where it’s stored.

“With the metadata piece, it’s also complementary with existing interfaces. The standard can be used with Amazon, for file or block data and it can use any number of storage protocols, such as NFS, CIFS or iSCSI,” said SNIA Chairman Wayne Adams.

Based on a RESTful HTTP protocol, CDMI provides both a data path and control path for cloud storage and standardizes a common interoperable format for securely moving data and its associated data requirements from cloud to cloud. The standard applies to public, private and hybrid deployment models for storage clouds.

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