The present invention provides systems and methods for data storage. A hierarchical storage management architecture is presented to facilitate data management. The disclosed system provides methods for evaluating the state of stored data relative to enterprise needs by using weighted parameters that may be user defined. Also disclosed are systems and methods evaluating costing and risk management associated with stored data.

According to the embodiments, an external storage device switches to an interface controller for supporting only a read operation of nonvolatile memory when a shift condition for shifting to a read only mode is met. A host device switches to an interface driver for supporting only the read operation of the nonvolatile memory when determining to recognize as read only memory based on information acquired from the external storage device.

A computer includes an SMS module that communicates with a management server apparatus via a network, a display that displays predetermined information, and a CPU that controls an operation of the display. When the SMS module receives a control command from the management server apparatus via the network, the CPU executes processing corresponding to the control command. Furthermore, the CPU transmits a notification signal including information, which indicates a state of execution of the control program, to the management server apparatus via the network.

Furthermore, the CPU displays, on the display, a state indicator including information which indicates a state of execution of the control program when the notification signal cannot be transmitted to the management server apparatus via the network.

A decoding method, a memory controlling circuit unit and a memory storage device are provided. The decoding method includes: performing a first type decoding operation for a first frame including a first codeword to obtain a second codeword. The method also includes: recording error estimate information corresponding to the first frame according to an execution result of the first type decoding operation. The method further includes: updating the first codeword in the first frame to the second codeword if the error estimate information matches a first condition; and performing a second type decoding operation for a block code including the first frame.

According to an embodiment, when a storage status of a first storage unit is recognized as a protected state, a control unit writes data to a second storage unit. When a read target address is recorded in a data migration log area, the control unit reads data from the second storage unit. When the read target address is not recorded in the data migration log area, the control unit reads data from the first storage unit.

Embodiments of the present invention provide a memory resource optimization method and apparatus, relate to the computer field, solve a problem that existing multi-level memory resources affect each other, and optimize an existing single partitioning mechanism. A specific solution is: obtaining performance data of each program in a working set by using a page coloring technology, obtaining a category of each program in light of a memory access frequency, selecting, according to the category of each program, a page coloring-based partitioning policy corresponding to the working set, and writing the page coloring-based partitioning policy to an operating system kernel, to complete corresponding page coloring-based partitioning processing. The present invention is used to eliminate or reduce mutual interference of processes or threads on a memory resource in light of a feature of the working set, thereby improving overall performance of a computer.

An information processing device including: a processor configured to collect information on a connected expansion device; and a controller configured to receive the information on the expansion device from the processor, to determine, with respect to a type of an expansion device, whether the expansion device is a specific device that is connected to a storage, and to perform, when the expansion device has been determined to be the specific device, monitoring processing of monitoring an operation of the storage based on information on the storage that is obtained from the specific device.

Systems, methods and apparatuses to control power usage of a data storage device. For example, the data storage device has a temperature sensor configured to measure the temperature of the data storage device are provided. A controller of the data storage device determines a set of operating parameters that identify an operating condition of the data storage device. An inference engine of the data storage device determines, using an artificial neural network in the data storage device and based on the set of operating parameters, an operation schedule for a period of time of processing input and output of the data storage device. The operation schedule is configured to optimize a performance of the data storage device in the period of time without the temperature of the data storage device going above a threshold.

A respective write cycle count for each of a plurality of data units of a memory device is obtained. Based on the respective write cycle count, whether a data unit of the plurality of data units satisfies a media management criterion is determined. Responsive to determining that the respective write cycle count satisfies the media management criterion, a media management operation every first constant cycle count on the data unit is performed. Responsive to determining that the respective write cycle count does not satisfy the media management criterion, a media management operation every second constant cycle count on the data unit is performed. The second constant cycle count is less than the first constant count.

A memory system includes a nonvolatile memory and a controller. The nonvolatile memory has first regions in which data writes and data reads can be executed in parallel. Each of the first regions has second regions which are each a data write/read unit. The controller acquires first values indicating a data write load for each of the first regions, detects a first region having a first value greater than or equal to a first threshold, acquires second values indicating a data write load for each of the plurality of second regions in the detected first region, detects a second region having a second value greater than or equal to a second threshold but less than or equal to a third threshold that is higher than the second threshold, and then move data from the detected second region to a second region in another first region.