SNAPSHOT PROTECTING METHOD AND APPARATUS

摘要

A snapshot protecting method and apparatus, the method includes: obtaining an instruction for creating a snapshot copy for the first snapshot, creating the copy of the first snapshot based on the instruction of creating the snapshot copy, obtaining an operation instruction for the first snapshot and/or the copy of the first snapshot, and performing the corresponding operation for the first snapshot and/or the copy of the first snapshot according to the operation instruction. Since the snapshot data is reserved by using the snapshot copy, the data of the snapshot time point can be resumed through the snapshot copy even the snapshot data is modified to protect the snapshot effectively, at the same time, the parallel operation request of the snapshot data to the same time point can be met based on the snapshot and several copy of the snapshot.