1. A computer-implemented method for transferring input/output operations within computer clusters, at least a portion of the method being performed by a computing device comprising at least one processor, the method comprising: identifying a computer cluster that comprises: a plurality of nodes configured to facilitate access to a plurality of physical storage devices; at least one computing object that represents data stored on the physical storage devices; detecting at least one failure that prevents at least one node within the computer cluster from performing at least one input/output operation on at least a portion of the computing object that represents the data stored on the physical storage devices, wherein detecting the failure comprises determining that the node is unable to perform the input/output operation on the portion of the computing object by determining that the node within the computer cluster is: able to access at least one source object that comprises input/output data to be written to the portion of the computing object as part of the input/output operation; unable to access the portion of the computing object; in response to detecting the failure: identifying at least one other node within the computer cluster that is able to perform the input/output operation on the portion of computing object by determining that the other node within the computer cluster is able to access the portion of the computing object; directing the node within the computer cluster to: obtain, from the source object, a single instance of input/output data that facilitates performing the input/output operation on the portion of the computing object; transfer a single instance of the input/output data to the other node instead of transferring a different instance of input/output data for each physical storage device storing the data represented by the computing object; enable the other node to use the transferred single instance to write the input/output data to the portion of the computing object by copying at least a portion of the transferred single instance to at least a portion of each physical storage device that stores the data represented by the computing object.