Hefei Core Storage Electronic Limited

A variable temperature test system and an operation method thereof are provided. The variable temperature test system includes a main control device, multiple test devices, and a variable temperature test platform. The variable temperature test platform is coupled to the main control device and the test devices. The main control device provides an adjustment parameter according to at least one pending test. The variable temperature test platform includes multiple test areas, multiple temperature sensors, and a temperature control module. The test areas are respectively coupled to the test devices. The temperature sensors are respectively disposed in the test areas. The temperature control module is coupled to the test areas. The temperature control module adjusts a temperature of at least one test area according to the adjustment parameter.

A memory management method, a memory storage device, and a memory control circuit unit are provided. The memory management method includes: creating a physical block management table for managing physical blocks; selecting at least one physical block to be refreshed based on the physical block management table when power is restored after an abnormal power loss; in response to a number of the at least one physical block to be refreshed being greater than 1, determining at least one current state and at least one category of the at least one physical block to be refreshed; and executing at least one second write operation based on the current state and the category together when executing a first write operation. The first write operation includes writing user data into a cache. The second write operation includes writing data stored in a physical block to be refreshed into a first physical block.

Disclosed are a service lifetime monitoring and early warning method, a memory storage device, and a memory control circuit unit. The method includes: reading a history information from a rewritable non-volatile memory module, calculating a remaining lifetime based on the history information and a user habit, generating an early warning signal, and outputting the remaining lifetime and the early warning signal in response to the remaining lifetime being lower than a preset lifetime.

A memory management method, a memory storage device, and a memory control circuit unit are provided. The method includes: in response to receiving a data management command from a host system, calculating a plurality of occupied capacities required for a plurality of system management information respectively stored in a plurality of physical erasing units based on a capacity of an allocation unit; executing a data consolidation operation based on the occupied capacities, and in response to an occupied capacity being greater than a capacity of a physical erasing unit, copying system management information corresponding to the occupied capacity to at least one first physical erasing unit; and in response to a sum of at least one occupied capacity not being greater than the capacity of the physical erasing unit, copying at least one system management information corresponding to the at least one occupied capacity to a second physical erasing unit.

A data writing method, a memory storage device, and a memory control circuit unit are provided. The data writing method includes the following: calculating a first number according to a ratio of a capacity of at least one first system table to a capacity of a physical block; calculating a second number according to a ratio of a capacity of at least one second system table to the capacity of the physical block; and obtaining at least one physical block from a plurality of physical blocks as a first virtual block and a second virtual block based on the first number and the second number respectively.

A data storing method, a memory storage device, and a memory controller are provided. The method includes: obtaining a plurality of program/erase counts and a plurality of program/erase period values of a plurality of physical erasing units in a storage area; calculating a plurality of data cold and hot degrees according to the plurality of program/erase counts and the plurality of program/erase period values; selecting a first physical erasing unit according to the plurality of data cold and hot degrees, and selecting a second physical erasing unit according to the plurality of data cold and hot degrees; and writing data stored in the first physical erasing unit to the second physical erasing unit.

A memory control method and a memory storage device, and the method includes: dividing each of the storage groups into a first or second storage group; receiving a first write command from a host system, in which the first write command includes first data and a first address; performing a first encoding process on the first data to obtain first parity data; storing the first data and the first parity data in a first physical programming cell indicated by the first address; determining whether a current storage group to which the first physical programming cell belongs is the first or second storage group; and in response to the current storage group being the first storage group, performing a second encoding process on the first physical programming cell to obtain second parity data of the first physical programming cell, and storing the second parity data of the first physical programming cell.

A storage controller, a data reading method and a storage device. data reading method: identifying a plurality of logical addresses corresponding to files based on file read commands; determining a plurality of mapping tables corresponding to files based on logical addresses; loading a first mapping table corresponding to a first file to a first memory section of a buffer memory; identifying one or more second logical addresses of one or more second files corresponding to first mapping table among files or than first file; determining target content of first mapping table based on one or more second logical addresses, and copying target content to a second memory section of buffer memory; and from target content, finding a fourth physical address corresponding to a fourth logical address of a fourth file among second files, to read fourth data of fourth file, so as to respond to a fourth file read command.

A memory management method, a memory storage device, and a memory control circuit unit are provided. The method includes: in response to receiving a data management command from a host system, calculating a plurality of occupied capacities required for a plurality of system management information respectively stored in a plurality of physical erasing units based on a capacity of an allocation unit; executing a data consolidation operation based on the occupied capacities, and in response to an occupied capacity being greater than a capacity of a physical erasing unit, copying system management information corresponding to the occupied capacity to at least one first physical erasing unit; and in response to a sum of at least one occupied capacity not being greater than the capacity of the physical erasing unit, copying at least one system management information corresponding to the at least one occupied capacity to a second physical erasing unit.

A memory management method, a memory storage device, and a memory control circuit unit are provided. The memory management method includes: creating a physical block management table for managing physical blocks; selecting at least one physical block to be refreshed based on the physical block management table when power is restored after an abnormal power loss; in response to a number of the at least one physical block to be refreshed being greater than 1, determining at least one current state and at least one category of the at least one physical block to be refreshed; and executing at least one second write operation based on the current state and the category together when executing a first write operation. The first write operation includes writing user data into a cache. The second write operation includes writing data stored in a physical block to be refreshed into a first physical block.