Hitachi Data Systems Corporation

Vitaly Zolotusky

Christopher S Lacasse

Matthew Michael McDonald

Benjamin Isherwood

Jack A Orenstein

Richard Rogers

Archive management is enhanced by logically partitioning a physical cluster. Using an interface, an administrator defines 'tenants' within the cluster. A namespace is a logical partition of the cluster for a collection of objects. Each namespace has a private file system. This approach enables a user to segregate cluster data into logical partitions. Using the interface, a namespace for a tenant is configured without affecting a configuration of another namespace. One configuration option is 'versioning,' by which an administrator can elect to enable multiple versions of a same data object to be stored in association with a namespace. Once versioning is enabled for a namespace, the administrator can set a configuration parameter identifying a time period for maintaining a version. Preferably, versioning is dasabled for a data object under retention.

Fixed content storage within a partitioned content platform using namespaces, with versioning

A content platform (or 'cluster') that comprises a redundant array of independent nodes is logically partitioned. Using a web-based interface, an administrator defines one or more 'tenants' within the cluster, wherein a tenant has a set of attributes: namespaces, administrative accounts, data access accounts, and a permission mask. A namespace is a logical partition of the cluster that serves as a collection of objects typically associated with at least one defined application. Each namespace has a private file system with respect to other namespaces. This approach enables a user to segregate cluster data into logical partitions. Using the administrative interface, a namespace associated with a given tenant is selectively configured without affecting a configuration of at least one other namespace in the set of namespaces. One configuration option is a &#x201c;disposition service&#x201d; that, once enabled for a namespace, automatically deletes objects that were once under retention and whose retention time has expired. Preferably, the disposition service deletes objects that do not have a &#x201c;retention hold&#x201d; associated therewith. The service enables the content platform to automatically reclaim cluster capacity while minimizing external involvement and archive load.

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Acton, MA, United States of America

Vitaly Zolotusky