A computing system, comprising: a processing resource ; and a storage system (104; 232; 304; 404) coupled to the processing resource via a hybrid interface ; wherein the hybrid interface provides an input/output, I/O, access path (173; 471) to the storage system that supports both block level storage I/O access requests having a size greater than a host cache line size and sub-block level storage I/O access requests having a size not greater than a host cache line size; wherein the hybrid interface is configured to: in response to a received data request corresponding to a block level storage I/O access request having a size greater than a host cache line size, manage the data request via a first file system portion (342-1) of the hybrid interface associated with aggregating data requests whose size is less than a block size; and in response to the data request corresponding to a sub-block level storage I/O access request having a size not greater than the host cache line size, manage the data request via a second file system portion (342-2) of the hybrid interface associated with preventing data requests from being aggregated to a block sized data request, wherein a size of a respective one of the data requests is less than the block size. a processing resource ; and a storage system (104; 232; 304; 404) coupled to the processing resource via a hybrid interface ; wherein the hybrid interface provides an input/output, I/O, access path (173; 471) to the storage system that supports both block level storage I/O access requests having a size greater than a host cache line size and sub-block level storage I/O access requests having a size not greater than a host cache line size; wherein the hybrid interface is configured to: in response to a received data request corresponding to a block level storage I/O access request having a size greater than a host cache line size, manage the data request via a first file system portion (342-1) of the hybrid interface associated with aggregating data requests whose size is less than a block size; and in response to the data request corresponding to a sub-block level storage I/O access request having a size not greater than the host cache line size, manage the data request via a second file system portion (342-2) of the hybrid interface associated with preventing data requests from being aggregated to a block sized data request, wherein a size of a respective one of the data requests is less than the block size. in response to a received data request corresponding to a block level storage I/O access request having a size greater than a host cache line size, manage the data request via a first file system portion (342-1) of the hybrid interface associated with aggregating data requests whose size is less than a block size; and in response to the data request corresponding to a sub-block level storage I/O access request having a size not greater than the host cache line size, manage the data request via a second file system portion (342-2) of the hybrid interface associated with preventing data requests from being aggregated to a block sized data request, wherein a size of a respective one of the data requests is less than the block size. <EOS>