The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 2018
Filed:
Jun. 25, 2015
Emc Ip Holding Company Llc, Hopkinton, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A technique processes input/output (I/O) requests from a set of host computers. The technique utilizes data storage equipment which includes a set of physical storage drives and storage processing circuitry which accesses the set of physical storage drives. The technique involves storing, by the storage processing circuitry, a set of storage drive objects in main memory. The set of storage drive objects includes a set of zeroed chunk tables. Each storage drive object (i) represents a physical storage drive and (ii) includes a zeroed chunk table which identifies storage chunks of that physical storage drive that have been initialized to zero. The technique further involves receiving, by the storage processing circuitry, I/O requests from the set of host computers, and performing, by the storage processing circuitry, I/O tasks in response to the I/O requests. The I/O tasks include zero on demand operations based on the set of zeroed chunk tables.