Solid state drive, electronic device including solid state drive, and method of managing solid state drive

A method of managing a solid state drive (SSD), the method comprising:

• powering off the SSD;
• powering on the SSD in response to an increase in an ambient temperature of the SSD;
• and
• performing a retention recovery operation at the SSD.

A solid state drive, comprising:

• a nonvolatile memory device including a plurality of memory blocks each including a plurality of memory cells;
• and
• a controller including a temperature sensor and configured to perform a retention recovery operation on the plurality of memory blocks when a temperature sensed by the temperature sensor is greater than a critical value,
• wherein, in a power-on, the controller performs the retention recovery operation in response to no communication initialization with an external host device, or
• wherein, after the power-on, the controller performs the retention recovery operation in response to a request of the external host device.