Namespace access protocols

HCP supports access to namespace content through several industry-standard protocols:

For HCP namespaces only:

oA RESTful HTTP API (simply referred to as HTTP in the HCP documentation).

oHitachi API for Amazon S3, which is a RESTful, HTTP-based S3 compatible API. With the S3 compatible API, namespaces are called buckets.

oHswift, which is a RESTful, HTTP-based API that’s compatible with OpenStack Swift. With HSwift, namespaces are called containers.

For the default namespace only, a non-RESTful implementation of HTTP

For all namespaces:

oWebDAV

oCIFS

oNFS

These protocols support various operations: storing data, creating directories, viewing object data and metadata, viewing directories, modifying certain metadata, and deleting objects. You can use these protocols to access data with a web browser, third-party applications, Windows® Explorer, and other native Windows and Unix tools.

HCP allows special-purpose access to namespaces through the SMTP protocol. This protocol is used only for storing email.

For backup of the default namespace, HCP supports the NDMP protocol. Objects are backed up in OpenPGP format, which uses a tar file to package the files that represent an object. This standard format, which can be both signed and encrypted, allows backup objects to be restored to other storage systems.

HCP tenant administrators can create secure namespaces by enabling only the HTTP and CIFS protocols, configured to require authentication, and the S3 compatible and HSwift APIs, which always require authentication.

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