1. A storage system, comprising a plurality of storage devices coupled together and configured to store data, a logical storage volume operably coupled to the plurality of storage devices and configured to store a copy of a subset of the data as a plurality of segments; and a controller including a cache and memory, wherein the memory is configured to include a plurality of records such that each record corresponds with a segment in the logical storage volume and each record includes information regarding data stored in the corresponding segment; wherein the controller is configured to access the records in response to a cache miss of the cache to determine if requested data from the cache miss is stored and ready for access in the logical storage volume; and wherein the controller is configured to update the subset of data stored in the plurality of segments as a function of cache misses.