US 12,481,561 B2
Method, device, and computer program product for data backup
Qianyun Cheng, Chengdu (CN); Mengze Liao, Shanghai (CN); and Xiaoliang Zhu, Shanghai (CN)
Assigned to DELL PRODUCTS L.P., Round Rock, TX (US)
Filed by DELL PRODUCTS L.P., Round Rock, TX (US)
Filed on Jun. 1, 2023, as Appl. No. 18/204,600.
Claims priority of application No. 202310293153.9 (CN), filed on Mar. 23, 2023.
Prior Publication US 2024/0320101 A1, Sep. 26, 2024
Int. Cl. G06F 16/22 (2019.01); G06F 11/14 (2006.01)
CPC G06F 11/1458 (2013.01) [G06F 2201/84 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for data backup, comprising:
determining a first backup task, the first backup task to be performed at a first time, the first backup task having a first backup type, the first backup task associated with first data;
determining a second backup task, the second backup task to be performed at the first time, the second backup task having a second backup type, the second backup task associated with second data;
determining that the first data comprises the second data;
determining, based on the first backup type and the second backup type, that the first backup task and the second backup task can be combined into a third backup task, the first backup task and the second backup task being duplicate tasks, and the third backup task having the first backup type;
backing up the first data to backup storage using the third backup task;
assigning a retention time to the first data, the retention time being a longer of the first backup task and the second backup task;
creating first metadata associated with the first backup task, the first metadata comprising copy content associated with the first data;
creating second metadata associated with the second backup task, the second metadata comprising copy content associated with the second data; and
assigning retention locking to the first data, the retention locking preventing modification during the retention time.