1. A method of a redundant array of independent disks (RAID) controller for deploying an optimal input/output (I/O) scheduler type per a storage array configuration, comprising: generating performance data by assessing respective performances of a plurality of I/O scheduler types on different RAID level test volumes with at least one I/O pattern generated internally within a storage subsystem which comprises the RAID controller; storing the performance data and an associativeness of the performance data with respect to the plurality of I/O scheduler types on the different RAID level test volumes with the at least one I/O pattern to a nonvolatile memory of the RAID controller; and deploying an optimal one of the plurality of I/O scheduler types and at least one performance parameter for at least one subsequent I/O operation associated with the storage subsystem based on the performance data and the associativeness.