HDS Assigned Five Patents

Multi-node hybrid deduplication
Hitachi Data Systems Corporation (HDS), Santa Clara, CA, has been assigned a patent (9,678,973) developed by Trimble, Ronald Ray, Acton, MA, Tofano, Jeffrey V., Ramsdell, Thomas R., San Jose, CA, and Kennedy, Jon Christopher, Marlborough, MA, for a “multi-node hybrid deduplication.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “According to at least one embodiment, a data storage system is provided. The data storage system includes memory, at least one processor in data communication with the memory, and a deduplication director component executable by the at least one processor. The deduplication director component is configured to receive data for storage on the data storage system, analyze the data to determine whether the data is suitable for at least one of summary-based deduplication, content-based deduplication, and no deduplication, and store, in a common object store, at least one of the data and a reference to duplicate data stored in the common object store.“

The patent application was filed on October 15, 2014 (14/515,020).

Fixed content storage
Hitachi Data Systems Corporation (HDS), Santa Clara, CA, has been assigned a patent (9,678,962) developed by Pinkney, David B., Andover, MA, Primmer, Robert J., Berlin, MA, Neufeld, Russell A., Newton, MA, Pannese, Donald P., Westford, MA, Burnham, John F., Nashua, NH, Dames, Lisa, Roslindale, MA, and Orenstein, Jack A., Needham, MA, for a “fixed content storage within a partitioned content platform using namespaces.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Content platform management is enhanced by logically partitioning a physical cluster that comprises a redundant array of independent nodes. Using an interface, an administrator defines one or more ‘tenants’ within the archive cluster, wherein a tenant has a set of attributes including, for example, 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 such that access to one namespace, (and its associated objects) does not enable a user to access objects in another namespace. A namespace has capabilities, (e.g., read, write, delete, purge, and the like) that a namespace administrator can choose to enable or disable for a given data account.“

The patent application was filed on June 9, 2014 (14/299,102).

Improving MTDL in fixed content distributed storage
Hitachi Data Systems Corporation (HDS), Santa Clara, CA, has been assigned a patent (9,672,372) developed by Mason, Robert S., Uxbridge, MA, for a “method for improving mean time to data loss, (MTDL) in a fixed content distributed data storage.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “An archival storage cluster of preferably symmetric nodes includes a data protection management system that periodically organizes the then-available nodes into one or more protection sets, with each set comprising a set of n nodes, where ‘n’ refers to a configurable ‘data protection level’, (DPL). At the time of its creation, a given protection set is closed in the sense that each then available node is a member of one, and only one, protection set. When an object is to be stored within the archive, the data protection management system stores the object in a given node of a given protection set and then constrains the distribution of copies of that object to other nodes within the given protection set. As a consequence, all DPL copies of an object are all stored within the same protection set, and only that protection set. This scheme significantly improves MTDL for the cluster as a whole, as the data can only be lost if multiple failures occur within nodes of a given protection set. This is far more unlikely than failures occurring across any random distribution of nodes within the cluster.“

The patent application was filed on February 26, 2016 (15/054,279).

Content class for object storage indexing system
Hitachi Data Systems Corporation (HDS), Santa Clara, CA, has been assigned a patent (9,639,564) developed by Isherwood, Jr., Benjamin, Tewksbury, MA, Kats, Yury, Belmont, MA, and Rogers, Rich, Stoughton, MA, for a “content class for object storage indexing system.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “In some examples, a plurality of content properties may be used for managing indexing of object data, such as a plurality of files. Each content property may include an expression for extracting data values from specific data fields in the object data. Further, each content property may include a name that may be used for indexing the objects using the extracted data values. For instance, multiple content properties may have the same name, but may each have different expressions for extracting different data values from different data fields. Accordingly, the content properties may be used to extract desired data values from the objects for indexing. When a search query is received including a content property name and a specified value, one or more of the objects that are indexed with the specified value may be searched.“

The patent application was filed on February 4, 2016 (15/015,529).

Content selection for storage tiering
Hitachi Data Systems Corporation (HDS), Santa Clara, CA, has been assigned a patent (9,589,002) developed by Rogers, Richard, Bellevue, WA, Zolotusky, Vitaly, Arlington, MA, and Bryant, Alan G., Walpole, MA, for a “content selection for storage tiering.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “A method, of managing storage of content of a system, (400) in storage units, (430) 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, (702) 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, (706), 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.“

The patent application was filed on March 29, 2012 (14/364,196).