Dell Products Inc.

Emc IP Holding Company LLC

Roland Fei Sun

Andy Wu

Andy Ling Wu

Xingjun Lv

File management is enabled for large numbers of files. Example file management includes setting a grouping identifier for a file. The method further includes determining a storage address of a data block of the file, the storage address indicating an extent where the data block is located and an offset. The method further includes setting, in a storage region of the extent corresponding to the grouping identifier, a flag for the data block based on the offset. In this manner, a large number of files in a distributed file system can be managed more efficiently.

Method, apparatus, electronic device, and medium for file management

Provided herein is a method, an electronic device, and a computer program product for managing a storage system. A method can comprise, in response to determining that a first storage unit of a storage system is faulty, writing, by a system comprising a processor, a data block stored in the first storage unit into a hidden file of the storage system. The hidden file can be distributed across at least a second storage unit and a third storage unit of the storage system, wherein the second storage unit and the third storage unit are different from the first storage unit. Writing the data block can comprise creating the hidden file in the storage system, and creating an index information item corresponding to the data block for the hidden file, which index information item indicates a physical address of the data block.

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Shanghai, China

Roland Fei Sun