Storage device, operating method of storage device, and storage system

An operating method of a storage device comprising a nonvolatile memory and a controller, the operating method comprising:

• receiving a logical address from a host under control of the controller;
• searching a hot hash table for a position, at which the logical address is inserted into a hot list, by using the logical address under control of the controller;
• determining an attribute of data corresponding to the logical address based on the search result under control of the controller;
• and
• storing attribute information indicating the attribute of the data under control of the controller.

A storage system comprising:

• a storage device including a nonvolatile memory and a controller configured to manage a hot list and a hot hash table;
• and
• a host configured to transmit a logical address to the storage device,
• wherein the controller is further configured to search the hot hash table for the position, at which the logical address is inserted into the hot list, by using the logical address, determine an attribute of data corresponding to the logical address based on the search result, and store attribute information indicating the attribute of the data.