Quantum Assigned Three Patents

Data storage with selective adaptive predictive behavior
Quantum Corporation, San Jose, CA, has been assigned a patent (11,055,622) developed by Lord, Stephen, Prior Lake, MN, for a “data storage apparatus with selective adaptive predictive behavior.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Example apparatus and methods concern selective adaptive predictive data placement to improve the operating and/or electrical efficiency of a data storage apparatus. A future input/output operation is predicted from a current input/output operation, the state of the data storage apparatus, relationships between data currently being processed and data previously processed, environmental factors, or other factors. The apparatus and methods may improve data storage efficiency by selectively pre-fetching data, relocating data on the data storage apparatus or within a plurality of data storage apparatus, speculatively producing erasure codes or other error correction codes, speculatively deduplicating data, or other adaptive functions. Relocation and pre-fetching may be configured to achieve different policies focused on electrical efficiency, operating efficiency, use spreading, or other considerations.”

The patent application was filed on June 2, 2015 (Appl. No.14/728,497).

Automated storage tier copy expiration
Quantum Corporation, San Jose, CA, has been assigned a patent (11,048,671) developed by Middlecamp, William, Apple Valley, MN, and Hendrickson, Jon, Lakeville, MN, for an “automated storage tier copy expiration.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Example methods and apparatus release storage locations in a tiered storage system by deleting expired tier-copies of a file stored in the tiered storage system. One embodiment includes a policy-class circuit that defines a tier-copy policy associated with a tier, where the tier-copy policy includes an expiration interval (EI) associated with the tier, and a schedule associated with the tier. A copy expiration circuit checks, according to the schedule, for expiration-eligible tier-copies of a file stored in the tiered storage system based, at least in part, on an EI associated with a tier, and on an access time (AT) associated with the file, where the AT denotes the last time the file was accessed. The copy expiration circuit, upon determining that a tier-copy is expiration eligible, declares the tier-copy as expiration eligible. A delete/restore circuit, upon the copy expiration circuit declaring that the tier-copy is expiration eligible, deletes the tier-copy.”

The patent application was filed on October 18, 2017 (Appl. No.15/787,073).

Removable media based object store
Quantum Corporation, San Jose, CA, has been assigned a patent (11,042,299) developed by Wideman, Roderick B., Shackopee, MN, Goker, Turguy, Vista, CA, and Arslan, Suayb S., Irvine, CA, for a “removable media based object store.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Embodiments disclosed herein provide systems, methods, and computer-readable media to implement an object store with removable storage media. In a particular embodiment, a method provides identifying first data for storage on a first removable storage medium and designating at least a portion of the first data to a first data object. The method further provides determining a first location where to store the first data object in a first value store partition of the first removable storage medium and writing the first data object to the first location. Also, the method provides writing a first key that identifies the first data object and indicates the first location to a first key store partition of the first removable storage medium.”

The patent application was filed on November 1, 2016 (Appl. No.15/340,691).