Vitaly Zolotusky

US Patent:

8566290, Oct 22, 2013

Filed:

Oct 30, 2009

Appl. No.:

12/609770

Inventors:

Matthew M. McDonald - Quincy MA, US
Vitaly Zolotusky - Acton MA, US
Benjamin J. Isherwood - Tewksbury MA, US
Christopher S. Lacasse - Grafton MA, US
Jack A. Orenstein - Needham MA, US

Assignee:

Hitachi Data Systems Corporation - Santa Clara CA

International Classification:

G06F 17/00

US Classification:

707661, 707737, 719328

Abstract:

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.

US Patent:

20110106771, May 5, 2011

Filed:

Oct 30, 2009

Appl. No.:

12/609892

Inventors:

Matthew M. McDonald - Quincy MA, US
Vitaly Zolotusky - Acton MA, US
Richard E. Rogers - Stoughton MA, US
Christopher S. Lacasse - Grafton MA, US

International Classification:

G06F 17/30

US Classification:

707663, 707E17005, 707E17009

Abstract:

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 “disposition service” 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 “retention hold” associated therewith. The service enables the content platform to automatically reclaim cluster capacity while minimizing external involvement and archive load.

US Patent:

20170177257, Jun 22, 2017

Filed:

Mar 3, 2017

Appl. No.:

15/448736

Inventors:

- Santa Clara CA, US
Vitaly ZOLOTUSKY - Arlington MA, US
Alan G. BRYANT - East Walpole MA, US

International Classification:

G06F 3/06

Abstract:

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.

US Patent:

20140324860, Oct 30, 2014

Filed:

Mar 29, 2012

Appl. No.:

14/364196

Inventors:

Richard Rogers - Bellevue WA, US
Vitaly Zolotusky - Arlington MA, US
Alan G. Bryant - East Walpole MA, US

Assignee:

HITACHI DATA SYSTEM CORPORATION - Santa Clara CA

International Classification:

G06F 17/30

US Classification:

707736

Abstract:

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.