69results 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.

Aspects of the innovations herein are consistent with a storage system for storing variable sized objects. According to certain implementations, the storage system may be a transaction-based system that uses variable sized objects to store data, and / or may be implemented using data stores, such as arrays disks arranged in ranks. In some exemplary implementations, each rank may include multiple stripes, each stripe may be read and written as a convenient unit for maximum performance, and / or a rank manager may be provided to dynamically configure the ranks. In certain implementations, the storage system may include a stripe space table that contains entries describing the amount of space used in each stripe. Further, an object map may provide entries for each object in the storage system describing the location, the length and / or version of the object.

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.

A semiconductor device includes a master circuit which outputs a first write request signal for requesting to write data, a bus which receives the data and the first write request signal, a bus control unit which is arranged on the bus, generates an error detection code for the data and generates a second write request signal which includes second address information corresponding to first address information included in the first write request signal and memory controllers which each write the data into a storage area of an address designated by the first write request signal and writes the error detection code into a storage area of an address designated by the second write request signal in the storage areas of memories.

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.

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.

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.

Devices and methods for backing up digital data on storage devices which are automatically selected on an individual basis for digital connection, data exchange and data storage on a scheduled basis and each kept digitally disconnected when not selected and connected for backup data transfer and storage. Devices and methods which backup data on one of a number of an offline storage devices by connecting a selected storage device, backup data onto an offline storage device and then disconnecting the offline storage device, in order to isolate the backed-up data and optionally allow a different storage device to be used for the next back up event.

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.

A storage controller and a storage array. The storage controller comprises: a central processing unit, a cache, a system hard disk, a first cache storage disk, a second cache storage disk and a battery backup unit, wherein the central processing unit is configured to read and write data in the cache; the first cache storage disk and the second cache storage disk are both connected to the central processing unit; the battery backup unit is configured to supply power to a corresponding component when the storage controller is powered down abnormally; and the central processing unit is further configured to write, when the storage controller is powered down abnormally, data in the cache into the first cache storage disk and the second cache storage disk. Therefore, the persistence of data in the cache is realized, and subsequent data recovery is facilitated, thereby ensuring the reliability of the storage controller.

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 utility model relates to the technical field of storage devices, in particular to a PCIE (Peripheral Component Interface Express) storage device with power-off protection. A PCIE storage device with power-off protection comprises a storage carrier plate, an SATA interface, a main control chip and a power-off protection module, wherein a PCIE interface is arranged on the lower portion of the storage carrier plate, the SATA interface is arranged on the storage carrier plate, the main control chip is arranged on the storage carrier plate and electrically connected with the SATA interface, and the power-off protection module is arranged on the storage carrier plate and electrically connected with the main control chip. According to the storage device, the two SATA interfaces are arranged on the storage carrier plate, so that the storage device can contain two solid state disks at the same time, a larger storage space and a larger transmission speed are obtained after the solid state disk installed on the storage device is connected with the storage device, and the power-off protection module composed of the super capacitor is further arranged on the storage carrier plate. Data damage caused by sudden power failure of the system in the process of reading and writing half of the SSD can be effectively prevented, and when the system is powered off, the active super capacitor is started to immediately store data in the cache.

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.

There is provided a peripheral device for providing network security to a host device, comprising: a network interface configured for connecting to a wireless network, a data interface configured for connecting to the host device, at least one processor executing a code for monitoring and / or analyzing data received over the network interface destined to the host device, and performing a security related action according to the monitoring and / or analysis for providing network security to the host device, and at least one peripheral service component configured for providing a peripheral service to the host device simultaneously with providing the network security.