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AssigneeElectronics and Telecommunications Research Institute
InventorsSang-Min Lee, Young-Kyun Kim, Han Namgoong
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The present invention relates to an apparatus and method of performing an error recovery process in an asymmetric clustering file system that has higher efficiency in data recovery when a data server in an asymmetric clustering file system fails than a method of processing the data recovery in the metadata server. The present invention includes receiving a chunk list requiring recovery by a data server included in the other data server groups than a data server group including a failed data server among a plurality of data server groups, requesting chunk data necessary for recovering an erroneous chunk from a data server in the other data server groups to the other data servers than the failed data server in the data server group, and recovering the erroneous chunk based on the chunk data by the data server in the other data server group.
A method of performing an error recovery process in an asymmetric clustering file system, comprising:
An apparatus of performing an erroneous recovery process in an asymmetric clustering file system containing a plurality of data servers divided into a plurality of data server groups, each data server group including at least one data server, comprising:
Dependencies are inferred from the claim text.