Methods and systems of awakening one or more clients for performance of data backup are disclosed. According to some embodiments, the method selects one or more clients for data backup. The method initiates a wake-up call for each of the selected clients. The method determines whether one or more of the selected clients are awake. In response to a determination that the one or more of the selected clients are awake, the method instructs the awakened selected clients to provide data for backup.