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.

Date of Patent:
Jul. 10, 2018

Filed:

May. 09, 2017
Applicant:

Emc Ip Holding Company Llc, Hopkinton, MA (US);

Inventors:

Andrew Chanler, Berlin, MA (US);

Michael Scharland, Franklin, MA (US);

Gabriel BenHanokh, Tel-Aviv, IL;

Arieh Don, Newton, MA (US);

Assignee:

EMC IP Holding Company LLC, Hopkinton, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/0802 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0802 (2013.01); G06F 2212/1016 (2013.01); G06F 2212/1032 (2013.01);
Abstract

Described are techniques for processing I/O operations. A read operation is received to read first data from a first location. It is determined whether the read operation is a read miss and whether non-location metadata for the first location is stored in cache. Responsive to determining that the read operation is a read miss and that the non-location metadata for the first location is not stored in cache, first processing is performed that includes issuing concurrently a first read request to read the first data from physical storage and a second read request to read the non-location metadata for the first location from physical storage.


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