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The purpose of the problem is how do reduce and manage the I/O overhead of data updating process in erasure coding. Mapping the update operations with current updating process. We find the method to reduce and maintains I/O overhead designing a heuristic scheduling algorithm. Then the analysis verifies that modify UCODR can effectively reduce the I/O overhead of update operations when multiple blocks are updated. It is implement a efficient storage system to deploy a modify UCODR with differentdoi:10.22214/ijraset.2019.4066 fatcat:3lyszwhe4nee3m3l6cacfd32fy