公开(公告)号：US20240004764A1

公开(公告)日：2024-01-04

申请号：US18188719

申请日：2023-03-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Daniel Goodman ,  Eddy Duer ,  Igor Shafran ,  Itamar Ofek ,  Michael Hirsch ,  Shaul Tamari

IPC: G06F11/14

CPC classification number: G06F11/1469 ,  G06F2201/84

Abstract: In a method for data recovery in a continuous data protection system, delta values representing an exclusive disjunction between successive values of data block contents of a content fragment of a dataset at a time t(n) and a time t(n−1) for n=1 to i, where i is selected according to a predetermined data protection profile, are generated. The delta values can be used to recover a dataset to a value at the selected point in time in association with a snapshot that is selected as a starting point for recovery based on a cost analysis associated with a volume of disk activity to restore.