Data storage device with accelerated post-emergency-power-off recovery process

A method comprising:

• receiving, by one or more processing devices individually or in combination, a set of data with an indicated address for writing the set of data to a selected disk surface among one or more disks;
• reading, by the one or more processing devices, individually or in combination, from a selected disk surface of a data storage device, a data sector from a data sector location that comprises the indicated address;
• integrating, by the one or more processing devices, individually or in combination, in a memory component, the received set of data with a subset of the data sector read from the selected disk surface, thereby generating a new data sector that comprises the received set of data positioned in the new data sector in accordance with the indicated address;
• detecting, by the one or more processing devices individually or in combination, while the new data sector is in the memory component and not yet written to the selected disk surface, a loss of nominal electrical power to the data storage device;
• and
• writing, by the one or more processing devices, individually or in combination, in response to detecting the loss of nominal electrical power, the new data sector from the memory component to a non-volatile cache.

One or more processing devices, individually or in combination, comprising:

• means for receiving a set of data with an indicated address for writing the set of data to a selected disk surface among one or more disks of a data storage device;
• means for reading, from the selected disk surface, a data sector from a data sector location that comprises the indicated address;
• means for integrating, in a memory component, the received set of data with a subset of the data sector read from the selected disk surface, thereby generating a new data sector that comprises the received set of data positioned in the new data sector in accordance with the indicated address;
• means for detecting, while the new data sector is in the memory component and not yet written to the selected disk surface, a loss of nominal electrical power to the data storage device;
• and
• means for writing, in response to detecting the loss of nominal electrical power, the new data sector from the memory component to a non-volatile cache.