Abstract: Embodiments of the present disclosure provide a memory system, and a method for garbage collection of the memory system. The method can include reading N valid data sets in a to-be-collected virtual block (VB) of a memory out to a copy buffer sequentially, where N is an integer greater than or equal to 2, transferring a valid data set in the copy buffer to a corresponding cache, and reading a next valid data set out to the copy buffer, and programming the valid data set in the cache to a corresponding target die group of a target VB. A time period in which a current valid data set is programmed from the cache to the target die group corresponding to the cache overlaps at least partially with a time period in which a next valid data set is read from the to-be-collected VB to the copy buffer.

Abstract: Implementations of the present disclosure provide a memory controller and a method operating the same. The method can include providing a plurality of virtual blocks to be collected, acquiring identification information of valid memory cell sets in the virtual blocks to be collected, determining valid memory cell sets for storing cold data in the virtual blocks to be collected according to the identification information, wherein the identification information includes hot and cold attributes indicating stored data in the valid memory cell sets, and, if the sum of the numbers of the valid memory cell sets for storing cold data in the plurality of virtual blocks to be collected is greater than or equal to the number of memory cell sets of a target virtual block, filling the target virtual block with cold data of the valid memory cell sets in the plurality of virtual blocks to be collected.

Abstract: An electric control box includes a shell, a mounting plate, and a heat exchanger; the mounting plate and the heat exchanger are connected by screw-thread fitting of a first fastener and corresponding connecting holes, the mounting plate and the heat exchanger are located inside the shell, and the heat exchanger is located between the mounting plate and an inner bottom face of the shell; the mounting plate and the shell are connected by screw-thread fitting of a second fastener and corresponding connecting holes.

Abstract: A method and an apparatus for updating data for a distributed database system are disclosed.

Abstract: A method and an apparatus for updating data for a distributed database system are disclosed.