Patent classifications
G06F11/1008
TECHNIQUES FOR MANAGING CONTEXT INFORMATION FOR A STORAGE DEVICE WHILE MAINTAINING RESPONSIVENESS
Disclosed are techniques for managing context information for data stored within a computing device. According to some embodiments, the method can include the steps of (1) loading, into a volatile memory of the computing device, the context information from a non-volatile memory of the computing device, where the context information is separated into a plurality of portions, and each portion of the plurality of portions is separated into a plurality of sub-portions, (2) writing transactions into a log stored within the non-volatile memory, and (3) each time a condition is satisfied: identifying a next sub-portion to be processed, where the next sub-portion is included in the plurality of sub-portions of a current portion being processed, identifying a portion of the context information that corresponds to the next sub-portion, converting the portion from a first format to a second format, and writing the portion into the non-volatile memory.
Secure data transmission utilizing distributed storage
A method includes dispersed storage error encoding, by a computing device of a dispersed storage network (DSN), a plurality of data segments to produce a plurality of sets of encoded data slices. The method further includes obfuscating a first set of encoded data slices of the plurality of sets of encoded data slices using a first obfuscating method to produce a first set of obfuscated encoded data slices. The method further includes obfuscating a second set of encoded data slices of the plurality of sets of encoded data slices using a second obfuscating method to produce a second set of obfuscated encoded data slices. The method further includes outputting the first and second sets of obfuscated encoded data slices for storage.
SELECTABLE SIGNAL, LOGGING, AND STATE EXTRACTION
A plurality of signals within a memory sub-system are analyzed by a signal analyzer component. Relevant signals among the plurality of signals are determined by the signal analyzer component such that the relevant signals comprise a subset of signals among the plurality of signals. Information corresponding to the relevant signals is sampled by the signal analyzer component and the signal analyzer component is responsible for extracting the information corresponding to the relevant signals among the plurality of signals.
Resiliency to memory failures in computer systems
A resiliency system detects and corrects memory errors reported by a memory system of a computing system using previously stored error correction information. When a program stores data into a memory location, the resiliency system executing on the computing system generates and stores error correction information. When the program then executes a load instruction to retrieve the data from the memory location, the load instruction completes normally if there is no memory error. If, however, there is a memory error, the computing system passes control to the resiliency system (e.g., via a trap) to handle the memory error. The resiliency system retrieves the error correction information for the memory location and re-creates the data of the memory location. The resiliency system stores the data as if the load instruction had completed normally and passes control to the next instruction of the program.
Error identification in executed code
The present disclosure includes apparatuses, methods, and systems for error identification on executed code. An embodiment includes memory and circuitry configured to read data stored in a secure array of the memory, identify a different memory having an error correcting code (ECC) corresponding to the read data of the memory, execute an integrity check to compare the ECC to the read data of the memory; and take an action in response to the comparison of the read data of the memory and the ECC, wherein the comparison indicates that the ECC identified an error in the read data of the memory.
Techniques for managing context information for a storage device while maintaining responsiveness
Disclosed are techniques for managing context information for data stored within a computing device. According to some embodiments, the method can include the steps of (1) loading, into a volatile memory of the computing device, the context information from a non-volatile memory of the computing device, where the context information is separated into a plurality of portions, and each portion of the plurality of portions is separated into a plurality of sub-portions, (2) writing transactions into a log stored within the non-volatile memory, and (3) each time a condition is satisfied: identifying a next sub-portion to be processed, where the next sub-portion is included in the plurality of sub-portions of a current portion being processed, identifying a portion of the context information that corresponds to the next sub-portion, converting the portion from a first format to a second format, and writing the portion into the non-volatile memory.
DATA ENCODING USING SPARE CHANNELS IN A MEMORY SYSTEM
Implementations of encoding techniques are disclosed. The encoding technique, such as a Data bus Inversion (DBI) technique, is implementable in a vertically-stacked memory module, but is riot limited thereto. The module can be a plurality of memory integrated circuits which are vertically stacked, and which communicate via a bus formed in one embodiment of channels comprising Through-Wafer Interconnects (TWIs), but again is not limited thereto. One such module includes spare channels that are normally used to reroute a data signal on the bus away from faulty data channels. In one disclosed technique, the status of a spare channel or channels is queried, and if one or more are unused, they can be used to carry a DBI bit, thus allowing at least a portion of the bus to be assessed in accordance with a DBI algorithm. Depending on the location and number of spare channels needed for rerouting, DBI can be apportioned across the bus in various manners. Implementations can also be used with other encoding techniques not comprising DBI.
APPARATUS AND METHODS FOR CALIBRATING SENSING OF MEMORY CELL DATA STATES
Methods of operating a memory, and apparatus configured to perform similar methods, include determining first states of a first sense node and a second sense node while a first voltage level is capacitively coupled to the first sense node and while a second voltage level is capacitively coupled to the second sense node, determining a second states of the first and second sense nodes while a third voltage level is capacitively coupled to the first sense node and while a fourth voltage level is capacitively coupled to the second sense node, determining a fifth voltage level in response to at least the first states of the first and second sense nodes and the second states of the first and second sense nodes, and determining third states of the first and second sense nodes while the fifth voltage level is capacitively coupled to the first and second sense nodes.
Memory device with unidirectional error detection code transfer for both read and write data transmitted via bidirectional data link
A controller includes a link interface that is to couple to a first link to communicate bi-directional data and a second link to transmit unidirectional error-detection information. An encoder is to dynamically add first error-detection information to at least a portion of write data. A transmitter, coupled to the link interface, is to transmit the write data. A delay element is coupled to an output from the encoder. A receiver, coupled to the link interface, is to receive second error-detection information corresponding to at least the portion of the write data. Error-detection logic is coupled to an output from the delay element and an output from the receiver. The error-detection logic is to determine errors in at least the portion of the write data by comparing the first error-detection information and the second error-detection information, and, if an error is detected, is to assert an error condition.
MEMORY BUFFER WITH DATA SCRAMBLING AND ERROR CORRECTION
A method for operating a DRAM device. The method includes receiving in a memory buffer in a first memory module hosted by a computing system, a request for data stored in RAM of the first memory module from a host controller of the computing system. The method includes receiving with the memory buffer, the data associated with a RAM, in response to the request and formatting with the memory buffer, the data into a scrambled data in response to a pseudo-random process. The method includes initiating with the memory buffer, transfer of the scrambled data into an interface device.