Methods for enhancing the performance of a host system including the steps of: providing an operating system, running on the host system, that supports a ReadyDrive and ReadyBoost accelerator; and providing a flash-memory storage device, which supports both the accelerators, having a single flash-memory module. Preferably, the method further includes the steps of: monitoring a frequency of write commands by the host system to the device; and upon the frequency exceeding a predefined threshold, suspending operations of the accelerators until the frequency is below the threshold. A repartitioning method for changing a storage-space ratio between a ReadyDrive and ReadyBoost storage-space including the steps of: copying data from the ReadyDrive storage-space in a flash-memory storage device; temporarily storing the data in an HDD; followed by partitioning the flash-memory device to a desired storage-space ratio between the ReadyDrive and ReadyBoost storage-space; and restoring the data from the HDD into the flash-memory device.