Apparatus and methods for operation of a memory controller, memory device and system are described. During operation, the memory controller transmits a read command which specifies that a memory device output data accessed from a memory core. This read command contains information which specifies whether the memory device is to commence outputting of a timing reference signal prior to commencing outputting of the data. The memory controller receives the timing reference signal if the information specified that the memory device output the timing reference signal. The memory controller subsequently samples the data output from the memory device based on information provided by the timing reference signal output from the memory device.

Apparatus and methods for operation of a memory controller, memory device and system are described. During operation, the memory controller transmits a read command which specifies that a memory device output data accessed from a memory core. This read command contains information which specifies whether the memory device is to commence outputting of a timing reference signal prior to commencing outputting of the data. The memory controller receives the timing reference signal if the information specified that the memory device output the timing reference signal. The memory controller subsequently samples the data output from the memory device based on information provided by the timing reference signal output from the memory device.

One example method includes gathering respective performance data concerning each asset in a group of assets, clustering the performance data so as to define a first cluster and a second cluster, and data assets in the first cluster are assigned a HIGH RISK label and data assets in the second cluster are assigned a LOW RISK label, assigning a respective risk score to each of the assets, and the risk score includes a quantified risk level for the asset to which the risk score has been assigned, ranking the assets with the HIGH RISK label according to their respective risk scores, and backing up a ranked asset based on an IO volume associated with that ranked asset.

Technologies are generally described to store data in single-level memory using rank modulation. In some examples, data to be encoded to single-level memory may be represented with a bit ranking for a group of bits. A program vector may then be determined from the bit ranking and partial program characteristics associated with the memory group(s). The memory group(s) may then be programmed according to the program vector. The encoded data may be subsequently retrieved by performing a series of partial programming operations on the memory group(s) to recover the bit ranking and derive the data represented.

Technologies are generally described to store data in single-level memory using rank modulation. In some examples, data to be encoded to single-level memory may be represented with a bit ranking for a group of bits. A program vector may then be determined from the bit ranking and partial program characteristics associated with the memory group(s). The memory group(s) may then be programmed according to the program vector. The encoded data may be subsequently retrieved by performing a series of partial programming operations on the memory group(s) to recover the bit ranking and derive the data represented.

Writing time is shortened even in a memory writing time for each access unit is not constant. A writing time prediction information holding unit holds writing time prediction information for predicting the writing time in a plurality of memory modules for each of a plurality of memory modules. A request selecting unit preferentially selects a write request of which longer writing time is predicted out of a plurality of write requests requiring writing in each of a plurality of memory modules on the basis of the writing time prediction information.

Systems and methods are disclosed including a memory device and a processing device, operatively coupled with the memory device, to perform operations comprising: receiving a write data request to store write data to the memory device; determining a physical block address associated with the write data request; performing a bitwise operation on each bit of the physical block address to generate a seed value; generating an output sequence based on the seed value; performing another bitwise operation on the output sequence and the write data to generate a randomized sequence; and storing, on the memory device, the randomized sequence.

A computer-readable recording medium storing an information processing program for causing a computer to execute a process including: specifying an amount of first areas subjected to data update among a plurality of first areas that are contained in a cache storage area and allowed to be synchronized individually from each other with a nonvolatile storage area; and determining whether to individually synchronize the first areas subjected to the data update among the plurality of first areas with the nonvolatile storage area or collectively synchronize a second area that is formed by the plurality of first areas and allowed to be collectively synchronized with the nonvolatile storage area, with the nonvolatile storage area, based on the specified amount, a first processing time taken for synchronization between the first areas and the nonvolatile storage area, and a second processing time taken for synchronization between the second area and the nonvolatile storage area.

Systems and methods are disclosed, comprising a memory device comprising multiple groups of memory cells, the groups comprising a first group of memory cells and a second group of memory cells configured to store information at a same bit capacity per memory cell, and a processing device operably coupled to the memory device, the processing device configured to adjust a scan event threshold for one of the first or second groups of memory cells to a threshold less than a target scan event threshold for the first and second groups of memory cells to distribute scan events in time on the memory device.

A method of resizing a block storage volume for a virtual machine includes executing the virtual machine and attaching a virtual storage device to the virtual machine. The virtual storage device exposes the block storage volume on memory hardware to the virtual machine. The block storage volume includes a first storage capacity. The method also includes mounting the block storage volume to the virtual machine and resizing the block storage volume while the virtual machine continues to execute. The block storage volume is resized without attaching an additional virtual storage device to the virtual machine or mounting an additional block storage volume to the virtual machine.