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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.:

US 10747718 B1

PDFFull Text
Date of Patent:
Aug. 18, 2020

Filed:

Jul. 26, 2017

Mapping structure for maintaining metadata for snapshots in a virtualized storage environment

Applicant:

Nutanix, Inc., San Jose, CA (US);

Inventors:

Manosiz Bhattacharyya, San Jose, CA (US);

Vinayak Hindurao Khot, Sunnyvale, CA (US);

Tabrez Parvez Memon, Santa Clara, CA (US);

Kannan Muthukkaruppan, Union City, CA (US);

Assignee:

Nutanix, Inc., San Jose, CA (US);

Attorney:

Vista IP Law Group, LLP

Primary Examiner:

Yicun Wu

Int. Cl.
CPC ...
G06F 16/00 (2019.01); G06F 16/11 (2019.01); G06F 16/174 (2019.01); G06F 16/18 (2019.01); H04L 12/931 (2013.01); G06F 9/455 (2018.01); G06F 9/48 (2006.01); G06F 9/50 (2006.01);
U.S. Cl.
CPC ...
G06F 16/128 (2019.01); G06F 9/455 (2013.01); G06F 9/45533 (2013.01); G06F 9/45558 (2013.01); G06F 9/48 (2013.01); G06F 9/485 (2013.01); G06F 9/4806 (2013.01); G06F 9/4843 (2013.01); G06F 9/4856 (2013.01); G06F 9/4881 (2013.01); G06F 9/50 (2013.01); G06F 9/5005 (2013.01); G06F 9/5011 (2013.01); G06F 9/5016 (2013.01); G06F 9/5022 (2013.01); G06F 9/5027 (2013.01); G06F 9/5061 (2013.01); G06F 9/5072 (2013.01); G06F 9/5077 (2013.01); G06F 9/5083 (2013.01); G06F 9/5088 (2013.01); G06F 16/1748 (2019.01); G06F 16/1873 (2019.01); H04L 49/356 (2013.01); G06F 2009/4557 (2013.01); G06F 2009/45562 (2013.01); G06F 2009/45575 (2013.01); G06F 2009/45579 (2013.01); G06F 2009/45583 (2013.01); G06F 2009/45595 (2013.01);
Abstract

A method for maintaining a mapping structure for maintaining metadata for snapshots in a virtualized storage environment, includes taking a snapshot of a virtual disk, generating an entry in a metadata structure for the snapshot, wherein the entry includes metadata for blocks in the snapshot that have been modified since a preceding snapshot and lazily generating an entry in the mapping structure for the snapshot, wherein the entry includes values for each block in the snapshot, wherein a value for a block indicates a presence of metadata in the metadata structure for the block or an absence of metadata in the metadata structure for the block.

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