US 12,253,917 B2
Method and system for continuous data protection
Assaf Natanzon, Hod Hasharon (IL)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jun. 21, 2023, as Appl. No. 18/339,090.
Application 18/339,090 is a continuation of application No. PCT/EP2020/087362, filed on Dec. 21, 2020.
Prior Publication US 2023/0333946 A1, Oct. 19, 2023
Int. Cl. G06F 11/14 (2006.01)
CPC G06F 11/1469 (2013.01) [G06F 11/1471 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of continuous data protection (CDP), comprising:
sending, by a splitter, block I/O write data from a computing system to a primary volume and to a CDP appliance;
recording, by a file system tracker communicatively coupled with the splitter, a log of meta data operations made to files in a file system of the primary volume and sending the log to the CDP appliance; and
recording, by the CDP appliance, the block I/O write data in a journal and a secondary volume, and recording the log of meta data operations made to files in the file system of the primary volume in a continuous catalog,
wherein the continuous catalog is searchable, based on a name and attributes of a respective file, for a state of the respective file at a point in time (PIT), wherein the state of the respective file at the PIT is defined by what operations have been made to the file by the PIT.