Tad J Hunt

US Patent:

20130268770, Oct 10, 2013

Filed:

Apr 6, 2012

Appl. No.:

13/441715

Inventors:

Tad Hunt - Sunnyvale CA, US
Frank E. Barrus - New Ipswich NH, US

International Classification:

G06F 12/14
G06F 17/30

US Classification:

713189

Abstract:

A method for bursting a hash table of a key-value database comprises receiving a key and a value, traversing trie nodes of the key-value database from a root node to a leaf node by recursively dividing the key into a prefix and a suffix, reaching the leaf node, the leaf node being the hash table, determining that the key is not stored in the hash table, determining that the hash table is not able to store the key and the value, removing the hash table, associating a new trie node with a parent trie node of the hash table, associating two or more new hash tables with the new trie node, moving all keys and associated values from the hash table into one of the two or more new hash tables, and inserting the key and the associated value into one of the two or more new hash tables.

US Patent:

20130268644, Oct 10, 2013

Filed:

Apr 6, 2012

Appl. No.:

13/441592

Inventors:

Charles Hardin - Campbell CA, US
Sridhar Subramaniam - Sunnyvale CA, US
Tad Hunt - Sunnyvale CA, US
Frank E. Barrus - New Ipswich NH, US

International Classification:

G06F 15/173

US Classification:

709223

Abstract:

Computer-implemented methods and systems for managing data objects within a computer network infrastructure that facilitate more efficient and reliable data storage and access are provided. An exemplary method may comprise establishing a physical identifier for each storage resource. A plurality of unique virtual identifiers for each storage resource is generated based on the physical identifier. The plurality of unique virtual identifiers is stored in a consistent ring namespace accessible to every node. An object identifier associated with a location of a data object to be stored in a storage resource is generated. The object identifier is mapped to the consistent ring namespace. The method may also include enabling traversing the consistent ring namespace from any node in the computer network to locate and access the data object.

US Patent:

20150222616, Aug 6, 2015

Filed:

Feb 3, 2014

Appl. No.:

14/171651

Inventors:

- Sunnyvale CA, US
Tad Hunt - Sunnyvale CA, US

International Classification:

H04L 29/06
H04L 12/24

Abstract:

A system for secure cloud-based management of private cloud connected devices is provided. In one embodiment, the system comprises one or more on-site cloud connected devices located within an untrusted customer site, a multi-tenant cloud-based management service configured to manage the one or more on-site cloud connected devices, and a user interface to facilitate access to the one or more on-site cloud connected devices located within the untrusted customer site by a user associated with the untrusted customer site.

US Patent:

20150172114, Jun 18, 2015

Filed:

Dec 12, 2013

Appl. No.:

14/105099

Inventors:

Anthony John Tarlano - Menlo Park CA, US
Tad Hunt - Sunnyvale CA, US

Assignee:

Exablox Corporation - Sunnyvale CA

International Classification:

H04L 12/24
H04L 29/06
H04L 29/08

Abstract:

A method for provisioning of a device or a group of devices discovery and registration service comprises receiving availability messages from unbound devices, receiving a request for the service, correlating the service identifying data to the device identifying data, selecting candidate unbound devices, prompting the user to select an unbound device, or an unbound group of devices, receiving a selected unbound device, or a selected unbound group of devices, from the user, sending a machine generated code to an output device associated with the selected unbound device or group of devices, prompting the user to confirm ownership of the selected unbound device or group of devices, by entering the machine generated code, receiving, from the user, a human entered code, comparing the machine generated code to the human entered code, and based on the comparison, selectively binding the selected device, or the selected group of devices, to the service.

US Patent:

20150015131, Jan 15, 2015

Filed:

Jul 10, 2013

Appl. No.:

13/939027

Inventors:

Peter Privitera - San Francisco CA, US
Jon Carver - Millbrae CA, US
Joshua Druker - Redwood City CA, US
Tad Hunt - Sunnyvale CA, US
Douglas Brockett - Menlo Park CA, US
Ramesh Balan - Cupertino CA, US

Assignee:

Exablox Corporation - Sunnyvale CA

International Classification:

G06F 1/18
H05K 13/00

US Classification:

312309, 295921

Abstract:

An apparatus for removing a modular electronic device from a chassis and a method for assembling thereof are provided. The apparatus for removing the modular electronic device from the chassis comprises a door pivotally coupled to the chassis, a sliding element in slidable engagement with the door, an ejection actuator including a spring member connected to the ejection actuator and to the rear of the chassis, and a linkage element connecting the sliding element with the ejection actuator. Additionally, the apparatus for removing the modular electronic device from the chassis comprises a guide rail disposed in the chassis enclosure to guide the modular electronic device and to guide the ejection actuator along the chassis enclosure.

US Patent:

20150019491, Jan 15, 2015

Filed:

Jul 10, 2013

Appl. No.:

13/939106

Inventors:

Tad Hunt - Sunnyvale CA, US
John Howe - Saratoga CA, US

Assignee:

Exablox Corporation - Sunnyvale CA

International Classification:

G06F 17/30

US Classification:

707639

Abstract:

Computer-implemented methods and systems for replication of data between mirrored data sites are provided. An exemplary method may comprise receiving a data object at a mirrored data site, the mirrored data site including one or more data nodes. The data objects are replicated to the one or more data nodes internally. Then, a data object reference associated with the data object is generated. The reference referring to the data object is queued for transmission to all other mirrored data sites. The data object reference associated with the data object is transmitted to the other mirrored data sites. When the data object is received at each mirrored data site, it is replicated to one or more data nodes within the site. After transmitting the data object, the data object reference is discarded.

US Patent:

20140379671, Dec 25, 2014

Filed:

Jun 19, 2014

Appl. No.:

14/309796

Inventors:

- Sunnyvale CA, US
Tad Hunt - Sunnyvale CA, US

International Classification:

G06F 17/30

US Classification:

707692

Abstract:

Disclosed is the technology for data scrubbing in a cluster-based storage system. This technology allows protecting data against failures of storage devices by periodically reading data object replicas and data object hashes stored in a plurality of storage devices and rewriting those data object replicas that have errors. The present disclosure addresses aspects of writing data object replicas and hashes, checking validity of data object replicas, and performing data scrubbing based upon results of the checking.

US Patent:

20140372490, Dec 18, 2014

Filed:

Jun 12, 2014

Appl. No.:

14/303329

Inventors:

- Sunnyvale CA, US
Tad Hunt - Sunnyvale CA, US

International Classification:

G06F 12/02

US Classification:

707814

Abstract:

Disclosed is a method for hybrid garbage collection of objects in a file system. An example method includes associating, with each object in the file system, a reference counter, an expiration time, and a version identifier. The object is can be kept in the file system while the reference counter of the object is non-zero. After determining that the reference counter of the object is zero, the object can be kept in the file system up to the expiration time associated with the object. When a reference referring to the object is deleted, the expiration time of the object is updated to the latest of the expiration times of the object and the reference. Furthermore, the object can be kept in the file system while the version identifier of the object is larger than a predetermined version number.