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:
Mar. 15, 2022

Filed:

Oct. 01, 2020
Applicant:

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

Inventors:

Dennis Trulli, Jr., Littleton, MA (US);

Peter Callewaert, Puurs-Sint-Amands, BE;

Assignee:

Dell Products, L.P., Hopkinton, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/34 (2006.01); G06F 3/06 (2006.01); G06F 11/30 (2006.01);
U.S. Cl.
CPC ...
G06F 11/3409 (2013.01); G06F 3/0604 (2013.01); G06F 3/0631 (2013.01); G06F 3/0653 (2013.01); G06F 3/0658 (2013.01); G06F 3/0683 (2013.01); G06F 11/3037 (2013.01);
Abstract

A consistency group is defined to include a set of required devices on a set of storage systems. High activity devices are determined, and write dependencies between each high activity device and each low activity devices are monitored. A set of high importance devices is determined to include the high activity devices and low activity devices with a high write dependency on at least one of the high activity devices. Comparative write patterns between the high importance devices and low importance devices are used to determine a set of candidate devices for removal from the consistency group. The high importance devices, rather than all devices of the consistency group, are also used to determine a set of devices that have inadvertently not been included in the consistency group.


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