Emc IP Holding Company LLC

Li Ke

Jing Yu

Tao He

Ming Zhang

Yun Wang

Jie Li

Gang Wang

Na Li

The present disclosure relates to a method, device and computer program product for managing an application system. In the method, a backup copy is obtained for a group of data objects. A parent address of a parent backup block corresponding to the parent data object in the backup copy, a first address of a first backup block corresponding to the first data object in the backup copy, and a second address of a second backup block corresponding to the second data object in the backup copy are determined. A parent index entry, a first index entry and a second index entry are generated based the aforementioned addresses. An index for the backup copy is determined based on the parent index entry, the first index entry and the second index entry, the first index entry and the second index entry being continuous in the index.

Method, device, and computer program product for managing application system

Embodiments of the present disclosure relate to a method, apparatus and computer program product for managing a data backup. The method comprises determining a first data amount to be involved in an addressing operation and a second data amount to be involved in a copy operation for an extent to be backed up on a source storage device, the addressing operation addressing a starting address of the extent and the copy operation copying an amount of data corresponding to a length of the extent. The method further comprises obtaining, based on an identifier of the source storage device, a first historical time elapsed for a previous addressing operation having the first data amount and a second historical time elapsed for a previous copy operation having the second data amount.

Method, apparatus and computer program product for managing data backup

The present disclosure relates to a data backup method and device, and a method, device and computer program product for managing data backup. The method for data backup implemented at the computing device comprises: receiving a backup message indicating that data backup is to be performed, the backup message indicating at least one of the following: a virtual machine to be backed up, an operating computing device of the virtual machine to be backed up, and a virtual disk to be backed up; determining, based on the backup message, a block device for which data backup is to be performed, the block device corresponding to at least a part of the virtual disk to be backed up; and performing incremental backup on data in the block device.

Method, device and computer program product for data backup

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Chengdu, China

Li Ke