Virtual machine change block tracking

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11422709
APP PUB NO 20200142612A1
SERIAL NO

16667746

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Abstract

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According to certain aspects, a system includes a client device that includes a virtual machine (VM) executed by a hypervisor, a driver located within the hypervisor, and a data agent. The VM may include a virtual hard disk file and a change block bitmap file. According to some embodiments the driver intercepts write operations generated by the VM to store data in a sector, determines an identity of the sector based on the intercepted write operation, determines an entry in the change block bitmap file that corresponds with the first sector, and modifies the entry in the change block bitmap file to indicate that data in that sector has changed. The data agent may generate an incremental backup of the VM based on the change block bitmap file in response to an instruction from a storage manager, where the incremental backup includes the data in the sector where data was modified.

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Patent Owner(s)

  • COMMVAULT SYSTEMS, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dornemann, Henry Wallace Eatontown, US 144 9266
Pawar, Rahul S Marlboro, US 174 13108

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