54results about "Memory loss protection" patented technology

The present disclosure relates to a computing high speed link (CXL) device configured to protect data by using data encryption and a method of operation thereof. An example CXL device includes a volatile memory connected to a plurality of channels; and a CXL controller. The CXL controller includes: a CXL subsystem controller configured to search a key index table for a first key index based on first host data and a first device physical address; and a memory subsystem controller configured to search for at least one first key in a key table based on the first key index, and generate first encrypted data based on the first data, the first device physical address, the at least one first key, and an encryption algorithm.

Denial of service attack mitigation based on compute node failures is described herein. In an example, a system can include a first point of presence (POP) that is located in a first region and a server that is located in a second region. The system can also include a first compute node that is located in the first region and communicatively coupled with the first POP or that is located in the second region and communicatively coupled with the server and has a smaller capacity to handle requests than each of the POP and the server. The first compute node is configured to receive a request of the POP indicating a network address of the server, determine data to send the request along a network path to the server, and send the request along the network path based on the data.

The present disclosure describes systems and methods for generating, implementing, and verifying a security program for organizations. In one aspect, a method for generating, implementing, and verifying a security program for an organization is disclosed. The method includes receiving inputs providing information about the organization, generating the security program by processing the inputs describing the information about the organization, the security program including assessment objectives for the security program, and providing the information about the organization and the security program as model inputs to a security management model to generate output including implementation procedures defining steps for implementing the security program and verification procedures defining steps for verifying the assessment objectives of the security program.

This invention relates to the field of data storage technology, and discloses a critical data processing system, method, device, medium, and program product. The critical data processing system includes: a power-down monitoring module, a power-down processing module, a critical data extraction module, a hardware acceleration module, volatile memory, and a storage disk. Based on different monitoring results from the power-down monitoring module and the state of the critical data recording switch, the critical data extraction module and the power-down data processing module package the corresponding data to be recorded or protected and move it to a specific address in the volatile memory. Then, the hardware acceleration module reads the recorded or protected data from the corresponding address in the volatile memory. This critical data processing system has a high transmission rate and sufficient storage space, enabling it to perform both power-down critical data protection and critical data recording functions. During operation, it can automatically switch from critical data recording to power-down critical data protection mode according to the usage scenario.

The invention discloses a power-down protection method and device for a solid state disk and a storage medium, and relates to the technical field of data processing.The method comprises the steps that when it is detected that the solid state disk is in a pre-power-down state, mirror image data of a cache emergency data area is obtained; based on a preset interface, writing the mirror image data into a pre-distribution protection block of a flash memory; and according to a preset minimum write-in protocol, deleting redundant fields of the data in the cache common data area, and writing the obtained necessary data into the pre-distribution protection area block. The technical problems that the data is easy to lose and the writing efficiency is low in the power-down scene of the solid state disk are solved.

The invention belongs to the field of aviation airborne computers, and provides a multi-stage detection power-down data protection system and method based on an MCU (Microprogrammed Control Unit), which are used for protecting key health data generated by a main module when a main power supply of the system is powered down. The system comprises a to-be-tested power supply module, an MCU energy storage power supply module, a data communication module and an MCU control module. The MCU integrates an ADC, an interrupt GPIO, a detector PVD, an SRAM and a Flash; the to-be-tested power supply module is respectively connected with the ADC and the GPIO, and monitors a main power supply for supplying power to the main module; the MCU energy storage power supply module provides backup power supply for the MCU when the main power supply is powered down; and the main module writes key data into the SRAM through the data communication module, and the MCU transfers the key data into the Flash after detecting a power failure event. The method does not need an NVRAM (Non-Volatile Random Access Memory) or a special monitoring chip, is low in cost and high in reliability, and is suitable for high-reliability embedded systems such as aviation and airborne systems.

In some examples, a system groups a multitude of blocks of coded data into first segments, where each first segment comprises several blocks from the multitude of blocks, and the coded data is based on the application of a deletion correction coding to input data. The system stores the first segments in corresponding error domains of a first set of error domains in a first deletion correction configuration, where the first deletion correction configuration allows error recovery in response to lost coded data in a specified number of error domains. The system transitions from the first deletion correction configuration to a second deletion correction configuration by reorganizing the first segments into second segments, where each second segment comprises a different number of blocks of coded data than a first segment.

One embodiment of the method involves creating a first storage volume for an application launched at a first data center, communicating with a second data center to create a second storage volume for the application at the second data center to replicate the first storage volume, and sending information identifying the application to the second data center. The second data center creates the second storage volume and establishes a mapping between the application and the second storage volume using the information identifying the application, wherein the second data center uses the mapping to identify the second storage volume of the application when the application migrates from the first data center to the second data center.

An operating method of a storage device, includes: receiving decoded data from a codec; determining whether the decoded data includes a region of interest (ROI); based on determining the ROI is included in the decoded data, determining whether the decoded data includes a first background region, other than the ROI, identical to a second background region of an adjacent frame; based on determining the first background region is identical to the second background region, determining a similarity for the ROI between the decoded data and the adjacent frame; determining whether the similarity is lower than a reference value; and based on determining the similarity is lower than the reference value, generating detection information indicating that the decoded data is faked.

The invention discloses a solid state disk read failure processing method and a solid state disk. The method comprises the following steps: when a read command is received and a corresponding logic address is recorded in a table which cannot be corrected, if a corresponding record is derived from previous read failure, re-reading data in a corresponding physical address; when re-reading succeeds, moving the corresponding record out of the uncorrectable table and triggering garbage collection to move effective data in the corresponding physical block to a new physical block; when re-reading fails, accumulating read failure counts in the corresponding records; and when the read failure count reaches a threshold value, setting the physical address to be invalid, and subtracting the count value of the corresponding logic address from the count of the valid fragment of the physical block where the physical address is located, so that the count of the valid fragment of the physical block where the physical address is located can return to zero and is allowed to be erased. According to the method, the problems that data are permanently discarded by the UNC due to occasional factors, and the corresponding physical block is locked for a long time due to the fact that the VFC of the physical block cannot be reset due to the physical page of the UNC can be solved.

Various embodiments for predicting which software vulnerabilities will be exploited by malicious hackers and hence prioritized by patching are disclosed.

The application provides a self-adaptive solid state disk power failure protection method and device. The method comprises the following steps: after triggering power failure, firstly, the physical address of the data to be persisted in the volatile cache is directly determined by calculation based on a pre-stored linear mapping relationship, so as to eliminate the energy consumption and delay of traditional traversal search; secondly, the real-time available energy of the energy storage array is obtained and compared with a preset energy demand threshold; the energy demand threshold is obtained based on load prediction; if the energy is insufficient, part of the data subset is abandoned to be written according to the dynamically generated data priority order; finally, the selected data subset is written into the non-volatile storage medium according to the calculated physical address. The application significantly improves the power failure protection success rate and system energy efficiency.

The invention provides a data storage method and device, a vehicle and a storage medium, the method is applied to the field of data storage, firstly, two channels isolated from each other are established, and data classification and distribution are achieved from the source; and secondly, the key data of the first recording channel is subjected to real-time disk falling and is directly written into the nonvolatile storage medium, so that the loss risk of the key data is avoided. And meanwhile, the data of the second recording channel is buffered and temporarily stored and is written into the volatile storage medium, so that the input / output frequency and load of the nonvolatile storage medium are reduced. And finally, the data in the associated buffer area is subjected to batch disk dropping only under specific conditions, so that storage resources are distributed according to needs, and the overall performance and storage efficiency of the system are improved while the reliability of key data is ensured.

The invention relates to the technical field of computing devices, in particular to a memory fault isolation method and a computing device.In the starting stage of the computing device, fault identification information corresponding to at least one memory is read, and the fault identification information is used for determining whether an unavailable fault exists in the corresponding memory or not; based on the fault identification information corresponding to the at least one memory, determining a first memory with an unavailable fault; and isolating the first memory. In the embodiment of the invention, the memory fault is pre-checked, the system operation problem is avoided, and the system starting safety and stability are improved.

The present disclosure relates to a Compute Express Link (CXL) device configured to protect data by using data encryption, and an operating method thereof. An example CXL device includes a volatile memory and a CXL controller. The CXL controller receives first host data and a first host physical address from a first host device, converts the first host physical address into a first device physical address, obtains a first key index, based on a key index table, the first host data, and the first device physical address, obtains at least one first key, based on a key table and the first key index, and performs an encryption operation, based on the at least one first key and an encryption algorithm.

The application discloses a metadata loss prevention method and device, a readable storage medium and an electronic device. After a system obtains a metadata writing instruction, corresponding metadata is written into a target data block according to the metadata writing instruction. When it is detected that the metadata in the target data block is not completely saved, the target data block storing the metadata is erased, a new target data block is obtained again to save the metadata, and the completeness of the metadata is detected again until the metadata is completely saved in the data block, so that the metadata written in the data block is complete metadata, loss of the metadata is avoided, and the completeness of metadata saving is improved and the risk of metadata loss is reduced.

A hybrid tracker system and method are disclosed for RH mitigation, which combines the best of both SRAM and DRAM to enable low-cost mitigation of RH at ultra-low thresholds. The system consists of two structures. First, an SRAM-based structure is provided that tracks aggregated counts at the granularity of a group of rows and is sufficient for the vast majority of rows, which receive only a few activations. Second, a per-row tracker stored in the DRAM-array is provided which can track an arbitrary number of rows; however, to limit performance overheads, this tracker is used only for the small number of rows that exceed the tracking capability of the SRAM-based structure.

Systems, procedures, and devices prevent data loss in storage devices. Systems may include a non-volatile storage device comprising a first data unit configured to store data for the non-volatile storage device and associated metadata, and a second data unit configured to store data for the non-volatile storage device and associated metadata, wherein the first data unit and the second data unit are configured to alternately store a latest version of the data and associated metadata.The systems may also include a control circuit configured to read metadata from the first data unit and the second data unit, identify the first data unit as an inactive data unit based on the contents of the first and second data units, and perform one or more update operations so that the first data unit is updated and set as an active unit when the update operations are complete.

The present disclosure generally relates to a method of operating a storage device. The storage device is comprised of a controller, a random access memory (RAM) unit, and an NVM unit, where the NVM unit is comprised of a plurality of partitions. The RAM unit includes a first logical-to-physical address table, and the NVM unit includes a second logical-to-physical address table. The partitions are divided into segments, and each divided segment is aligned with a change log table. Data is written in order into each partition, and only one divided segment of each partition is updated at a time. Each time a partition is erased or written in the NVM unit, the first logical-to-physical address table is updated, and the second logical-to-physical address table is periodically updated to match the first logical-to-physical address table.

The invention relates to an embedded electronic device and a nonvolatile data storage system thereof, and belongs to the field of data storage of embedded electronic devices. The system comprises a processor, an FPGA and a nonvolatile memory, and the processor is in communication connection with the FPGA and used for issuing a read-write instruction to the FPGA; the FPGA is connected with the nonvolatile memory through a data line and is used for reading and writing data into the nonvolatile memory; two, three or more than four storage areas are arranged in the nonvolatile memory, the FPGA is used for selecting the storage area to be written according to a set rule when data are written into the nonvolatile memory every time, and the set rule is that the storage area selected this time is different from the storage area written last time. The device comprises a power supply circuit and the nonvolatile data storage system, wherein the power supply circuit is used for supplying power to the nonvolatile data storage system. According to the invention, the device can obtain the non-volatile data with timeliness before power failure after the device is restarted due to abnormal power failure, and the integrity of system data is ensured.

The present disclosure relates to a computing high speed link (CXL) device configured to protect data by using data encryption and a method of operation thereof. An example CXL device includes a volatile memory and a CXL controller. The CXL controller receives first host data and a first host physical address from a first host device, translates the first host physical address into a first device physical address, obtains a first key index based on a key index table, the first host data, and the first device physical address, and transmits the first key index to the first host device. At least one first key is obtained based on the key table and the first key index, and an encryption operation is performed based on the at least one first key and an encryption algorithm.

Embodiments of the present disclosure disclose a method and device for distributed storage of metaverse data, electronic equipment and readable medium. A specific embodiment of the method comprises: collecting metaverse data corresponding to a preset metaverse platform; performing data preprocessing on a metaverse user data set; performing cold and hot data identification processing on the preprocessed metaverse user data set to obtain a metaverse user data group set; storing metaverse user hot data in the metaverse user data group in a main memory for access by a target user terminal; determining each metaverse user cold data included in the metaverse user data group set as a metaverse user cold data set; performing segmentation processing on the metaverse user cold data set; performing health detection processing on each preset storage node; and performing distributed storage of metaverse user cold data blocks. This embodiment reduces the access response delay of hot data included in the metaverse data and the risk of loss of metaverse data.

A robot controller system can switch or switches, respectively, into an activated-controller / power saving mode / deactivated-controller / first energy failure / second energy failure mode in case a power-up / power saving / power-down / energy failure / backup condition is determined, wherein in activated-controller mode electric energy supply of a plurality of subsystems (16, 17; 110, 111, 112) by a first electric energy supply (120) is activated, power saving mode electric energy supply of at least one of the subsystems is deactivated and electric energy supply of at least one other of the subsystems by the first electric energy supply (120) is activated, deactivated-controller mode electric energy supply of the plurality of subsystems is deactivated, first energy failure mode electric energy supply of at least one of the subsystems by the first electric energy supply (120) is replaced by electric energy supply by a second electric energy supply (121), and second energy failure mode backup data is saved using a third electric energy supply (122). A method for operating a robot controller system is also provided.

Systems and methods for network security testing of target computer networks using AI neural networks. A command and control server controls a number of geographically separated processors running a number of neural networks. A central data hive is accessible to all the processors. The processors are organizable into logical hemisphere groupings for specific tasks and / or projects. For security testing, hemisphere groupings are created for the project. Based on data for the target system on the data hive, attacks are formulated by a hemisphere grouping and these potential attacks are tested against known characteristics of the target network. Validated potential attacks and, in some cases, random attacks, are executed and data generated by the executed attacks are stored in the data hive for use in formulating and executing other further attacks. Potential attacks may involve mining social media networks for data on users of the target system.

Storage system that features the following: a storage device (200, 300, 5000, 8200) comprising a non-volatile storage device (340, 1000, 3601-3604, 5100, 7301, 8221) having a matrix arrangement structure of at least NxM, where N and M are integers equal to or greater than 2; and a test device (100) which is configured to test the storage device (200, 300, 5000, 8200), wherein an error address, which is detected by the test device (100), is transferred to the storage device (200, 300, 5000, 8200) and stored in the non-volatile storage device (340, 1000, 3601-3604, 5100, 7301, 8221), the test device includes a semiconductor chip, wherein the semiconductor chip has an error correction code, ECC, machine or a built-in self-test, BIST, unit and an error address memory (110, 260) configured to the error address, wherein the error address memory (110, 260) is controlled by a control unit (130, 270, 360, 4100, 8110), wherein the control unit (130, 270, 360, 4100, 8110) is configured to check or control the fault address to be stored in the fault address memory (110, 260) and transmitted according to a test command.

A computer-implemented method that exhibits: Create, by one or more processors, from one or more radio link control (RLC) channels, for transmitting network data packets in a telecommunications network by using network slicing technology; Assigning, by one or more processors, of one or more RLC channels to one or more applications in a user unit for dedicated packet routing requirements; Assigning, by one or more processors, corresponding RLC channels and applications to their respective corresponding identifiers; Monitoring, by one or more processors, of one or more applications for backups; and In response to receiving a backup request from an application, one or more processors create a copy of one of the application's datastores based on monitored changes in the one or more applications.

A network system to use artificial intelligence to provide an automated system to identify security vulnerability exploitation paths, predict next targets, and provide recommendations. The system provides a centralized system to provide an automated system to perform each primary function of red-teaming activities and penetration testing. The system provides the following actions to test the system: automated attack surface discovery; automation of penetration testing either internal or external; automation of different cloud security scanning; and automation of network and web scanning. To accomplish these steps, the system analyzes information gathered related to a client security posture and recommends required assessments, automates the implementation of the security assessments to identify security vulnerability exploitation paths, ranks vulnerabilities, removes false positives, suggests next actions, and predicts next targets.

A procedure implemented on a computer includes receiving a request to increase the size of a backup storage space for a storage medium; adding additional storage areas to the backup storage space in response to the request; identifying an existing storage area within the backup storage space; determining whether there are any occupied storage areas between the existing storage area and the additional storage areas added to the backup storage space; and conditionally using the additional storage areas added to the backup storage space based on this determination.

The application relates to a memory object reference analysis method and device, computer equipment, a storage medium and a computer program product. After a memory object query request is acquired, memory object address information is searched. According to the memory object address information, a socket connection mode is used to access a memory monitoring object. Memory object serialization information fed back by the memory monitoring object is acquired. The memory object serialization information is deserialized to acquire memory object reference information corresponding to the memory object query request. Memory object reference analysis information is generated according to the memory object reference information. The memory object reference analysis method can acquire memory object serialization information from the memory monitoring object through the socket connection, thereby obtaining corresponding memory object reference relationships through deserialization, realizing memory object reference relationship identification and display in a running process of the memory monitoring object, and performing more in-depth memory object reference analysis.