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.

Embodiments of the systems and methods disclosed herein relate to a modem having a processor including a Unified Extensible Firmware Interface (UEFI) driver. The UEFI driver can be configured to provide a software interface between an operating system for the modem and firmware for the modem. The modem can include a boot diagnostic driver configured to run from the UEFI driver and execute a diagnostic test when the modem is booting up. The boot diagnostic driver can be configured to generate a signal based on a result of the diagnostic test.

For the purpose of reproducing a call stack accurately without restricting the range of application, a stack scanner extracts, from a stack area of a thread whose call stack is to be acquired in a memory space of an application process, possible return addresses that are addresses in a feasible region in the memory space each representing a command right after a function call command. A program analyzer analyzes a control flow representing a flow of control configured by a branch in a function that is called by the function call command right before the command represented by each of the possible return addresses and, when there is a route reaching a command currently being executed in the control flow, determines that the possible return address is a return address and, when there is not the route, determines that the possible return address is not a return address.

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.

Systems and methods herein describe receiving identification from a data pipeline, accessing first data offset information for a first data origin and second data offset information for a second data origin, bisecting the first data origin using the first data offset information, processing the data pipeline with the bisected first data offset information and the second data offset information, receiving a notification indicating a data pipeline status, and causing presentation of the notification on a graphical user interface of a computing device.

A method of managing errors in a plurality of storage drives includes receiving, at a memory controller coupled to at least one storage medium in an SSD, a read command from a host interface. The method also includes retrieving, from the storage medium, read data corresponding to a plurality of data chunks to be retrieved in response to the read command, and determining that at least one data chunk of the plurality of data chunks is unable to be read, the at least one data chunk corresponding to a failed data chunk. And in response to determining the failed data chunk, sending to the host interface the read data including the failed data chunk or excluding the failed data chunk. And in response to the read command sending to the host interface status information about all data chunks.

Automated processes and systems for detecting abnormally behaving objects of a distributed computing system are described. Processes and systems obtain metrics that are generated in a historical time window and are associated with an object of the distributed computing system. Processes and system use the metrics to compute a time-dependent system indicator over the historical time window. Each value of the system indicator corresponds to a point in time of the historical time window when the object was in a normal or an abnormal state. Processes and systems use the normal and abnormal states of the system indicator in the historical time window to train a state classifier that is used to detect run-time abnormal behavior of the object. When the state classifier identifies abnormal behavior of the object, an alert is generated, indicating the abnormal behavior of the object.

A method is provided. The method includes receiving a set of data blocks to be stored in a storage system. The storage system includes a plurality of non-volatile memory modules. The method also includes generating a set of segments based on the set of data blocks. A respective segment comprising portions of one or more erase blocks. The method further includes writing the set of segments to the non-volatile memory modules based on orderings of the portions of the one or more erase blocks.

An indication to store to a remote storage a new archive of a snapshot of a source storage is received. At least one shared data chunk of the new archive is determined to be already stored in an existing chunk object of the remote storage storing data chunks of a previous archive. One or more evaluation metrics for the existing chunk object are determined based at least in part on a retention period associated with one or more individual chunks stored in the chunk object and a data lock period associated with the entire existing chunk object. It is determined based on the one or more evaluation metrics whether to reference the at least one shared data chunk of the new archive from the existing chunk object or store the at least one shared data chunk in a new chunk object of the remote storage.

A computer system may include multiple sensor circuits that monitor operation parameters of a computer system circuit in the computer system. A control circuit may use monitor signals generated by the sensor circuits to determine probabilities that the operation parameters are within corresponding ranges. The control circuit can use the determined probabilities to generate a combined probability, which can be compared to a threshold value. The operation of the computer system circuit can be adjusted by the control circuit using results of the comparison between the combined probability and the threshold value.