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:
Dec. 30, 2025

Filed:

Oct. 01, 2024
Applicant:

Dell Products L.p., Round Rock, TX (US);

Inventors:

Shashank Prakash Khobragade, Nagpur, IN;

Santi Gopal Mondal, Bangalore, IN;

Arun Vishnu Pk, Bangalore, IN;

Kalyan Gunda, Bangalore, IN;

Assignee:

Dell Products L.P., Round Rock, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/10 (2019.01); G06F 11/14 (2006.01); G06F 16/174 (2019.01);
U.S. Cl.
CPC ...
G06F 16/1748 (2019.01); G06F 11/1464 (2013.01); G06F 11/1469 (2013.01); G06F 2201/80 (2013.01);
Abstract

Data migrated from a deduplicated storage appliance are stored as cloud units at cloud storage. Each cloud unit includes containers including data containers storing segments of files, segment tree containers storing upper-level segments of segment trees representing the files, and cloud containers storing headers from the data and segment tree containers. A header for a data container includes fingerprints identifying the segments of files. A header for a segment tree container includes fingerprints identifying the upper-level segments. The cloud units are maintained in different states of accessibility including read-write, read-only, and offline. Upon detecting that local storage of the appliance does not have space to support a cloud unit in a read-write or read-only state, another cloud unit that is in a first state is selected, the first state being the read-write or read-only state. The selected cloud unit is placed in a second state, different from the first state.


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