Abstract: System component failure diagnosis is provided. In response to determining that a number of component failure cases corresponding to a complex system stored in a historical diagnosis database is less than a pre-defined threshold number of component failure cases, a system component failure root cause is predicted using a rule-based reasoning method. In response to determining that the number of component failure cases corresponding to the complex system is greater than or equal to the pre-defined threshold number of component failure cases, the system component failure root cause is predicted using the rule-based reasoning method and a machine learning method. The diagnosis accuracy of the system component failure root cause predicted by the rule-based reasoning method and the machine learning method is calculated using a cross-validation method. The performance of the rule-based reasoning method and the machine learning method is evaluated using a statistical process control method.

Abstract: A method for data reconstruction includes: obtaining a data migration list, where the data migration list indicates a partition with data to be migrated on a storage node with data to be migrated; generating a data migration task according to the data migration list and routing table information, where the routing table information indicates correspondence between a storage node in a cluster and a partition; and concurrently executing data migration tasks of a storage node in the cluster to reconstruct data. In addition, a device for data reconstruction and a storage system are further provided accordingly.

Abstract: For managing RAID parity stripe contention using a processor device in a computing environment, delaying one of a multiplicity of operations overlapping a parity sector in a parity stripe with a currently running operation and serializing each one of the multiplicity of operations overlapping the parity sector.

Abstract: Provided are techniques for capturing compression efficiency metrics for processing data. In response to retrieving native data for a first operation, perform the first operation; perform a second operation to generate a compression efficiency metric from the native data based on a ratio of the native data to compressed native data; and store the compression efficiency metric persistently for subsequent use in prioritizing compression of the native data.

Abstract: A cluster file system is provided having a plurality of distributed metadata servers with shared access to one or more shared low latency persistent key-value metadata stores. A metadata server comprises an abstract storage interface comprising a software interface module that communicates with at least one shared persistent key-value metadata store providing a key-value interface for persistent storage of key-value metadata. The software interface module provides the key-value metadata to the at least one shared persistent key-value metadata store in a key-value format. The shared persistent key-value metadata store is accessed by a plurality of metadata servers. A metadata request can be processed by a given metadata server independently of other metadata servers in the cluster file system. A distributed metadata storage environment is also disclosed that comprises a plurality of metadata servers having an abstract storage interface to at least one shared persistent key-value metadata store.

Abstract: A fault-tolerant retry subsystem, method and computer program product are provided in order to automatically retry to deliver a message. In the context of a fault-tolerant retry subsystem, processing circuitry is provided to receive notification that delivery of a message to a subscriber has failed. The processing circuitry also defines a time interval at which delivery of the message is to be retried. The message is to be subjected to a plurality of retry attempts in an instance in which the delivery of the message to the subscriber continues to fail. The time interval is defined in a manner that depends upon which of the plurality of retry attempts is to be performed. As such, the time interval varies between at least some of the retry attempts. The processing circuitry causes the delivery of the message to be retried following expiration the time interval.

Abstract: A user-mode crash reporting system for generating a crash report when an application crashes is provided. The user-mode crash reporting system installs a crash handler to execute in the same process as the application when the application crashes. When the application crashes, the crash handler identifies a victim thread of the process that was executing at the time of a crash. The crash handler then walks a call stack of the victim thread to identify return addresses for returning from called functions of the application. The crash handler identifies offsets within the module corresponding to the return addresses and creates a call chain of functions using the identified offsets. The crash handler then generates a crash report based on the identified call chain.

Abstract: A method, system, and computer program product for performing user-initiated logging and auto-correction in hardware/software systems. Embodiments commence upon identifying a set of test points and respective instrumentation components, then determining logging capabilities of the instrumentation components. The nature and extent of the capabilities and configuration of the components aid in generating labels to describe the various logging capabilities. The labels are then used in a user interface so as to obtain user-configurable settings which are also used in determining auto-correction actions. A measurement taken at a testpoint may result in detection of an occurrence of a certain condition, and auto-correction steps can be taken by retrieving a rulebase comprising a set of conditions corresponding to one or more measurements, and corrective actions corresponding to the one or more conditions.

Abstract: Programmatic generation of an actionable recovery workflow from data stored inside a Configuration Management Database which may be primarily populated through automated discovery. The programmatic workflow can be sent to an orchestration engine for execution, leveraging underlying automation components.

Abstract: An application alerting system includes a computing system that executes an application alerting service monitor at least one of multiple computing resources configured in a computing infrastructure to determine whether the one monitored computing resource experiences a failure. When a failure is detected, the service transmits a failure notification to applications associated with the failed monitored computing resource such that the application may perform at least one remedial action according to the received failure notification.

Abstract: Various embodiments are generally directed to techniques for preparing to respond to failures in performing a data access command to modify client device data in a storage cluster system. An apparatus may include a processor component of a first node coupled to a first storage device; an access component to perform a command on the first storage device; a replication component to exchange a replica of the command with the second node via a communications session formed between the first and second nodes to enable at least a partially parallel performance of the command by the first and second nodes; and a multipath component to change a state of the communications session from inactive to active to enable the exchange of the replica based on an indication of a failure within a third node that precludes performance of the command by the third node. Other embodiments are described and claimed.

Abstract: Embodiments of the inventive concept include computer-implemented method for shadowing one or more boot images of a mobile device. The technique can include duplicating boot images to shadow partitions in a user area of a non-volatile memory device such as a flash memory. The technique can include detecting boot image corruption, and causing a mobile device to boot from the shadow partitions. The technique can include dynamically shadowing and releasing blocks used by the shadow partitions. The technique can include boot failure recovery and bad image preservation through firmware flash translation layer (FTL) logical to physical mapping updates. Boot image corruption failures can be recovered from and/or debugged using the shadow partitions.

Abstract: Techniques to detect backup-related anomalies are disclosed. In various embodiments, a processor is used to generate based at least in part on backup log data associated with a training period a predictive model. The predictive model is to detect, using the processor, anomalies in corresponding backup log data associated with a detection period.

Abstract: A system differential upgrade method and apparatus, and a mobile terminal are provided. The method includes: obtaining an upgrade script and upgrade data; upgrading a file to be upgraded according to the upgrade script and the upgrade data; generating, according to the file processing command that is being executed currently in the upgrade script, and the file to be upgraded corresponding to the file processing command that is being executed currently, rollback data and a rollback script corresponding to the file to be upgraded; and when the upgrade fails, executing the rollback script according to the rollback data. The apparatus includes an obtaining module, an upgrading module, a generating module, and an executing module. According to the embodiments of the present invention, when an upgrade fails, the rollback script is executed according to the rollback data, which may restore a system to that before the upgrade.

Abstract: Systems and methods for automated fault recovery. In some embodiments, an Information Handling System (IHS) includes a processor and a Basic I/O System (BIOS) coupled to the processor, the BIOS having program instructions that, upon execution, cause the IHS to: identify a failure during execution of an Operating System; select, by the BIOS, a given one of a plurality of recovery tools previously registered with the BIOS; and launch the given recovery tool by the BIOS.

Abstract: A peripheral integrated circuit (IC) device for providing support to a data processing IC device. The peripheral IC device comprises a fault detection component arranged to detect an occurrence of fault conditions within the data processing IC device. The peripheral IC device further comprises a safe state control component. Upon detection of a fault condition occurring within the data processing IC device by the fault detection component, the safe state control component is arranged to cause at least one I/O cell of the data processing IC device to be configured into at least one scan-chain, and cause at least one predefined control signal to be scanned into the at least one scan-chain to configure the at least one I/O cell into a state corresponding to the predefined control signal.

Abstract: Techniques are disclosed relating to storage device failover. In one embodiment, a plurality of storage devices are represented as cluster resources to a cluster resource manager that manages cluster resources on a plurality of cluster nodes. An indication may be received that a failover operation is requested with respect to one of the plurality of storage devices. In response to the indication, the cluster resource manager may initiate the failover operation. In some embodiments, the failover operation includes changing a first access state of the storage device and a second access state of another storage device. In such an embodiment, the storage device and the other storage device may be associated with a logical unit number. In some embodiments, the storage device is located within a first of the plurality of cluster nodes; the other storage device is located within a second of the plurality of cluster nodes.

Abstract: A network management server stores, in terms of a transmission path within the network, each occurrence pattern of a failure occurrence area in which a failure has occurred in a communication apparatus through which the transmission path passes. Information for identifying a recovery plane serving as a set of recovery paths corresponding to each occurrence pattern and information for identifying the communication apparatus through which each of the recovery paths passes is also stored. When a failure occurs in any one of the plurality of areas, whether or not the failure corresponds to any one of the failure occurrence patterns, the information for identifying the recovery plane corresponding to the identified failure occurrence patterns is acquired; and the communication apparatus through which each of the recovery paths included in the recovery plane passes is notified of the information for identifying the recovery plane acquired.

Abstract: A module health system includes a module health circuit comprising a hardware register that is set to a first value in response to the system starting, an application register that is set to the first value in response to the system starting and a watchdog timer register that is set to the first value in response to the system starting. The system further includes a power on self-test that determines whether the system has passed a plurality of tests and that selectively sets the hardware register to a second value based on the determination, an external software application that determines whether a safety critical system is healthy and selectively sets the application register based on the determination, a watchdog timer application that selectively sets the watchdog timer register, a central processing unit that determines whether to de-assert a module health signal.

Abstract: Disclosed is a system and method for enabling a SNMP based Network Management System in cooperation with at least one SDN Controller to control sequence of recovery actions and dynamically change the recovery action sequence for a given fault based on the feedback received from an SNMP Agent/Open flow based devices across various systems/platforms for recovering a business service which is achieved by way of Open flow stack enhancements and OF-CONFIG enhancements at the controller end and device end. The present invention is essentially about extending the ability to initiate and perform dynamic recovery actions in a network supporting both the traditional SNMP based management systems & Open flow based SDN Control.