Hitachi Vantara Corporation

Hitachi Data Systems Corporation

Vitaly Zolotusky, Jr

Alan Bryant

Richard Rogers

Benjamin Isherwood

Kevin Scott Grimaldi

Alan G Bryant

A storage system comprises: a controller; a memory; one or more objects, each object having content data and metadata which includes system metadata; and a policy which governs writing of the content data and metadata of the one or more objects from the storage system to an external storage. The policy includes a configurable criterion for decoupling of the content data and the metadata of a given object and a rule for determining storage locations for the content data and the metadata between the storage system and the external storage in a decoupled manner if the content data and the metadata of the object are decoupled. The configurable criterion is based on an attribute of the metadata of the object. The controller is operable to execute the policy against the objects and to apply the rule to determine storage locations for the content data and metadata of a decoupled object.

Decoupled content and metadata in a distributed object storage ecosystem

A method, of managing storage of content of a system in storage units including run units which do not allow spin-down functionality and spin-down units which allow spin-down functionality, comprises: establishing a storage tiering rule which sets a policy indicating what content is eligible to be stored on a run unit and what content is eligible to be stored on a spin-down unit, the storage tiering rule being applicable to at least a group of the contents in the content system to determine stored content eligibility thereof for storage in the storage units and migration between the storage units; and identifying candidates of contents to migrate between the storage units, based on the storage tiering rule, state of the content system, and the stored content eligibility of the at least a group of the contents.

Content selection for storage tiering

A method, of managing storage of content of a system () in storage units () including run units which do not allow spin-down functionality and spin-down units which allow spin-down functionality, comprises: establishing a storage tiering rule () which sets a policy indicating what content is eligible to be stored on a run unit and what content is eligible to be stored on a spin-down unit, the storage tiering rule being applicable to at least a group of the contents in the content system to determine stored content eligibility thereof for storage in the storage units and migration between the storage units; and identifying candidates of contents to migrate between the storage units (), based on the storage tiering rule, state of the content system, and the stored content eligibility of the at least a group of the contents.

Growing community of inventors

Arlington, MA, United States of America

Vitaly Zolotusky, Jr