The present disclosure describes example service takeover methods, storage devices, and service takeover apparatuses. In one example method, when a communication fault occurs between two storage devices in a storage system, the two storage devices respectively obtain running statuses of the two storage devices. A running status can reflect current usage of one or more system resources of a particular storage device. Then, a delay duration is determined according to the running statuses, where the delay duration is a duration for which the storage device waits before sending an arbitration request to a quorum server. The two storage devices respectively send, after the delay duration, arbitration requests to the quorum server to request to take over a service. The quorum server then can select a storage device in a relatively better running status to take over a host service.

The present disclosure describes example service takeover methods, storage devices, and service takeover apparatuses. In one example method, when a communication fault occurs between two storage devices in a storage system, the two storage devices respectively obtain running statuses of the two storage devices. A running status can reflect current usage of one or more system resources of a particular storage device. Then, a delay duration is determined according to the running statuses, where the delay duration is a duration for which the storage device waits before sending an arbitration request to a quorum server. The two storage devices respectively send, after the delay duration, arbitration requests to the quorum server to request to take over a service. The quorum server then can select a storage device in a relatively better running status to take over a host service.

A tool for performing remote part reseat actions. Responsive to receiving a request for a scheduled operation, the tool generates an operation table in a push file. Responsive to a determination that there is at least one redundant component for the scheduled operation, the tool identifies the at least one redundant component. The tool determines one or more tolerable errors for the at least one redundant component. The tool appends the at least one redundant component and the one or more tolerable errors to the operation table in the push file. The tool schedules the push file to prescribe one or more recovery operations for the scheduled operation.

A method detects and localizes a failure of a measurement acquisition channel in an acquisition system including two redundant acquisition channels for the measurement of a physical quantity in an environment. The method uses a processor with a memory storing a model including modeled values of the physical quantity based on measurements of other physical quantities in the environment. The method includes detecting a symptomatic error of a defective acquisition channel when a deviation between the measured values of the two channels reaches a detection threshold, waiting to let the acquisition system evolve for a certain period, and localizing the defective channel among the two channels, when the deviation of the values measured between the channels reaches a localization threshold different from the detection threshold. The localization is made from the comparison of the measured value of each of the channels with a modeled value of the physical quantity.

An integrated circuit self-repair method and an integrated circuit thereof are provided. The integrated circuit self-repair method includes: transmitting, by a main register, a predetermined logic state to at least three registers, and setting the at least three registers to the predetermined logic state; outputting, according to the predetermined logic state in the at least three registers, the predetermined logic state to drive a controlled circuit to perform a function; and when a minority of the at least three registers are changed to an opposite logic state due to an emergency occurring at an input power source, outputting the predetermined logic state according to the predetermined logic state of the remaining registers, and transmitting the predetermined logic state back to the register that is in the opposite logic state, to correct the opposite logic state to the predetermined logic state.

Systems and methods may be used for monitoring and identifying failure in flight management systems. For example, a method may include: calculating, using a first flight management system, a first value of a guidance command for controlling an aircraft for an RNP AP procedure; receiving a second value of the guidance command from a second flight management system; comparing the first value with the second value to determine whether the first value matches the second value; upon determining that the first value does not match the second value, using a flight management system monitor to determine, from the first flight management system and the second flight management system, a flight management system that has computed a correct value of the guidance command; and generating a message indicating that the determined flight management system is to be used to guide the aircraft.

Fault detection devices, systems, and methods are provided which implement identical processors. A first processor is configured to receive a first measurement, execute a first firmware based on the first measurement, and output a first result of the executed first firmware. A second processor is configured to receive a second measurement, execute a second firmware based on the second measurement, and output a second result of the executed second firmware. The first firmware and the second firmware provide a same nominal function in a diverse manner for calculating the first result and the second result, respectively, such that the first result and the second result are expected to be within a predetermined margin.

An integrated circuit self-repair method and an integrated circuit thereof are provided. The integrated circuit self-repair method includes: transmitting, by a main register, a predetermined logic state to at least three registers, and setting the at least three registers to the predetermined logic state; outputting, according to the predetermined logic state in the at least three registers, the predetermined logic state to drive a controlled circuit to perform a function; and when a minority of the at least three registers are changed to an opposite logic state due to an emergency occurring at an input power source, outputting the predetermined logic state according to the predetermined logic state of the remaining registers, and transmitting the predetermined logic state back to the register that is in the opposite logic state, to correct the opposite logic state to the predetermined logic state.

A method is provided for a hyper-converged storage-compute system to implement an active-active failover architecture for providing Internet Small Computer System Interface (iSCSI) target service. The method intelligently selects multiple hosts to become storage nodes that process iSCSI input/output (I/O) for a target. The method further enables iSCSI persistent reservation (PR) to handle iSCSI I/Os from multiple initiators.

A resilient system implementation in a network-on-ship with at least one functional logic unit and at least one duplicated logic unit. A resilient system and method, in accordance with the invention, are disclosed for detecting a fault or an uncorrectable error and isolating the fault. Isolation of the fault prevents further propagation of the fault throughout the system. The resilient system includes isolation logic or an isolation unit that isolates the fault.