Patent ID: 11921629
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 19:
20. The non-transitory computer-readable storage medium of claim 17, wherein:
determining the expected expiration time of the new data file comprises:
predicting lifetime information of the new data file based on first lifetime information and fourth lifetime information or fifth lifetime information determined from the recorded attribute information of the data files; and
determining the expected expiration time of the new data file based on a creation time of the new data file and the predicted lifetime information of the new data file,

the first lifetime information is of the expired data files of the level where the new data file is located,
the fourth lifetime information is of unexpired data files adjacent to the new data file in the level where the new data file is located,
the fifth lifetime information is of unexpired data files that are in a level adjacent to the level where the new data file is located and whose key information overlaps with key information of the new data file.