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:
Mar. 24, 2015
Filed:
Mar. 30, 2012
Hongliang Tang, Hopkinton, MA (US);
Lixin Pang, Franklin, MA (US);
Matthew H. Fredette, Belmont, MA (US);
Patrick Brian Riordan, West Newton, MA (US);
Uresh Vahalia, Newton, MA (US);
Steven T. Mcclure, Northboro, MA (US);
Hongliang Tang, Hopkinton, MA (US);
Lixin Pang, Franklin, MA (US);
Matthew H. Fredette, Belmont, MA (US);
Patrick Brian Riordan, West Newton, MA (US);
Uresh Vahalia, Newton, MA (US);
Steven T. McClure, Northboro, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Global memory of a storage system may be used to provide NVRAM capabilities to guest operating systems accessing the storage system. The non-volatility of NVRAM (i.e. that retains its information when power is turned off) provides that an NVRAM device provided by global memory may be used as a journaling device to track storage operations and facilitate recovery and/or failover processing in a storage system without needing to add additional hardware and/or other installed devices. Use of the global memory according to the system described herein to provide an NVRAM device, that may function as a journaling device, provides for the speeding up of transactions, thereby improving metadata intensive operations performance and reducing recovery time and/or failover time of a storage system without adding additional hardware support.