Provided are a data management method for a distributed storage system, an apparatus, and an electronic device. The method comprises: sending to each storage server a first request for acquiring data copy information; and according to the data copy information returned by each storage server in response to the first request, updating mapping data used to reflect the correspondence between the data copy information and the storage servers.

In a storage system architecture having two storage virtualization controllers (SVCs) that operate in an active-active mode, the corresponding relationships between storage addresses in the two buffers of the two SVCs are pre-determined. When a non-owner SVC that does not have an ownership over a logical disk (LD), receives an I/O request from a host, the non-owner SVC will inquire of the other SVC having the ownership, about associated address information, and then the non-owner SVC that does not have the ownership over the LD will perform, according to the associated address information, the I/O request from the host. Therefore, data synchronization operation for mutually backing up data between the two SVCs can be fast achieved. Also, it allows the host to issue a data access request to any one of the SVCs, thus improving performance of the storage system.

A first optimization server including a first publish-subscribe broker is configured to connect to a first cellular base transceiver station, where the first cellular base transceiver station is configured to communicatively connect to entities, including a first entity, in an RF coverage area of the first cellular base transceiver station. A second optimization server includes a second publish-subscribe broker, where the first publish-subscribe broker and the second publish-subscribe broker are part of a publish-subscribe broker network that is operable to distribute published data packets between entities that are connected to a publish-subscribe broker of the publish-subscribe broker network, where the publish-subscribe broker network is configured to route data packets published by the first entity to a second entity via the first publish-subscribe broker and the second publish-subscribe broker if the second entity has subscribed to receive the data packets published by the first entity.

A computing device for configuring a redundant system includes: a detection unit configured to detect another computing device newly added to the redundant system during operation of the computing device; and a construction processing unit configured to execute construction processing for constructing a redundant configuration with the other computing device. The construction processing unit includes a first transmission unit for identifying construction start state information, and transmitting the construction start state information to the other computing device, and a second transmission unit for repeatedly performing identification of a change difference that arises in the state information as a result of computing processing of the computing device performed after identifying the construction start state information, from a time when the construction start state information was identified or a time when a previous timing was reached, and transmission of the change difference to the another computing device.

Disclosed is a base unit including a video link hub electrically connected to a user interface device to transmit a signal, a first system-on-chip (SoC) configured to provide a first infotainment function, and a processor configured to determine whether the first SoC is operating abnormally. When a second SoC is powered on, the first SoC performs authentication with respect to the second SoC, and when the processor determines that the first SoC is operating normally, the first SoC generates a first execution signal for display of a composite infotainment function, obtained by combining the first infotainment function with a second infotainment function provided by the second SoC, on the user interface device, and transmits the first execution signal to the video link hub, and the processor controls the video link hub to transmit the first execution signal to the user interface device.

Example embodiments relate generally to systems and methods for continuous data protection (CDP) and more specifically to an input and output (I/O) filtering framework and log management system to seek a near-zero recovery point objective (RPO).

A method for system recovery may be provided. The method may be implemented on a management server of a recovery system. The recovery system may further include at least one working server configured to perform one or more tasks and a global storage device configured to store a backup system or a system image file of each of the at least one working server. The management server may be connected to the at least one working server and the global storage device. The method may include, for each of the at least one working server, determining whether the working server is in an abnormal state. For each of the at least one working server, in response to determining that the working server is in an abnormal state, the method may further include assigning at least part of the global storage device to the working server and causing the working server to perform a first system recovery operation using the at least part of the global storage device.

Example control methods and apparatus are described. One example control method includes obtaining, by a first controller, a first operating status of the first controller before a control function of the first controller and/or a control function of a second controller are/is activated. The first controller receives first indication information sent by the second controller, where the first indication information indicates a controller status of the second controller. The first controller sets a first controller mode of the first controller based on the first operating status and the first indication information. Second indication information is sent by the first controller to the second controller, so that a first controller mode of the second controller that is set by the second controller does not conflict with the first controller mode of the first controller.

A distributed maintainable real-time computer system is provided, wherein the real-time computer system includes at least two central computers and one, two or a plurality of peripheral computers. The central computers have access to a sparse global time, have identical hardware and identical software, but different startup data, wherein each functional central computer periodically sends time-triggered multi-cast life-sign messages to the other central computers according to a time plan a priori defined in its startup data, and wherein the peripheral computers (151, 152, 153, 154) can exchange messages (135) with the central computers (110, 120), and wherein at all times one central computer is in the active state and the other central computers are in the non-active state, and wherein after the apparent absence of a life-sign message of the active central computer expected at a planned reception time, that non-active functioning central computer which has the shortest start-up timeout takes over the function of the active central computer, and wherein each central computer (110, 120; 200) consists of three independent subsystems, an application computer (210), a storage medium having the startup data (230) characteristic of the central computer (200) and an internal monitor (220), wherein the internal monitor (220) periodically checks the correct functioning of the application computer (210), and wherein upon detection of an error the monitor (220) initiates a hardware reset and a restart of the application computer (210), and wherein preferably the active central computer initiates a maintenance action after an apparent absence of the life-sign messages expected at the planned reception times from a non-active central computer, which action can lead to the repair or replacement of a permanently failed central computer.

A method of fault-tolerant process control includes providing a network process control system in an industrial processing facility (IPF) including a plant-wide network coupling a server to computing platforms each including computing hardware and memory hosting a software application for simultaneously supporting a process controller and another process controller or an I/O gateway. The computing platforms are coupled together by a private path redundancy network for providing a hardware resource pool. At least some of the computing platforms are directly coupled by an I/O mesh network to a plurality of I/O devices to field devices that are coupled to processing equipment. Upon detecting at least one failing device in the hardware resource pool, over the private path redundancy network a backup is placed into service for the failing device from the another process controller or I/O gateway that is at another of the computing platforms in the hardware resource pool.