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:
Dec. 04, 2018
Filed:
Sep. 30, 2016
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Louis Krigovski, Lexington, MA (US);
David Reese, Westborough, MA (US);
Clifford Lim, Hopkinton, MA (US);
Steven T. McClure, Northborough, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A data storage system includes compute engines each including a CPU complex, physical memory, interfaces to host computers and physical storage devices, and a fabric interface. A non-cache-coherent fabric interconnects the compute engines as cluster members of a cluster, the fabric supporting a global lock enabling each cluster member to obtain temporary exclusive access to addressable units of non-virtual memory. The CPU complexes implement a global virtual memory (GVM) on top of the non-virtual memory, including (1) a globally shared GVM page table of global page table entries, each identifying the cluster members having a corresponding GVM page mapped, and (2) GVM page management functionality including (i) use of the global lock to obtain exclusive access to the global page table entries for page management operations, and (ii) transfer of underlying data of the pages of the GVM among the cluster members.