Abstract: A digital system and a method of operating a digital system wherein the digital system has a digital resource and an event detector detect events of the digital resource. An operational mode of at least one of the system and the digital resource in effect during an interval is determined and a number of events that occur during the interval is accumulated. The accumulated events are compared against at least one threshold associated with the operational mode and action is taken if the comparison indicates an out-of-nominal operation of the digital resource.

Abstract: A system, method, and computer-readable medium for performing a data center monitoring and management operation. The data center monitoring and management operation includes: monitoring data center assets within a data center; identifying an issue within the data center, the issue being associated with an operational situation associated with a particular component of the data center; determining whether remediation documentation is available for the issue within the data center; generating a remediation task, the remediation task being designed to address the issue within the data center, the generating using the remediation documentation when the remediation documentation is available; performing a data center remediation operation based upon the remediation task; and, generating remediation documentation associated with performance of the remediation task when the remediation documentation is not available.

Abstract: One embodiment provides for a data processing system comprising multiple independent processors to execute multiple operating system environments of the data processing system, the multiple operating system environments to enable operation of multiple regions of a computing device associated with the data processing system. The multiple operating system environments are interconnected via a transport agnostic communication link. In response to detection of a fatal error in one or more of the multiple operating system environments, the multiple operating system environments coordinate performance of multiple separate error handling operations within the multiple operating system environments to generate a combined error log. The combined error log includes operational states of the multiple operating system environments.

Abstract: One or more embodiments analyze log records of applications to determine whether a composite rule pertaining to events associated with the log records occurring within a specified time window are satisfied. Satisfaction of the composite rule may facilitate real-time diagnosis and detection of patterns in logs which indicate problems, threats, systemic issues, or performance issues relating to the applications. The composite rule may specify events associated with log records from multiple different applications that occur within a same specified time window and are associated with a same tenant and entity. Satisfaction of the composite rule may be analyzed by a state machine that tracks satisfaction of the individual rules within the composite rule in a sequence of stages. A notification, alert, or alarm may be generated when the composite rule is satisfied.

Abstract: Data loss thresholds are enforced when performing updates to mirrored data sets. When an update is received for a data set that is mirrored to other copies of the data set, an evaluation of the difference between the data set and the other copies of the data set may be performed. If the evaluation determines that the difference fails to satisfy a threshold for acceptable data loss at the other copies upon a failure of the data set, a data loss mitigation action may be applied to performance of the update until the difference satisfies the threshold.

Abstract: In various embodiments, a technique can be provided to address debug efficiency for failures found on an operational system. The approach can make use of an existing pin on a memory device with added logic to respond to a trigger signal structured different from a signal that is normally sent to the existing pin on the memory device such that the memory device performs a normal or routine function of the memory device in response to the signal. In response to detecting one or more error conditions associated with the memory device, a system that interfaces with the memory device can generate the trigger signal to the memory device. In response to receiving the trigger signal, the memory device can dump an error log of the memory device to a memory component in the memory device. The error log can later be retrieved from the memory component for failure analysis.

Abstract: The invention relates to a method of fault management in a network of nodes (2), comprising, for each node considered (2) of all or part of the nodes (2) of the network performing one and the same calculation: firstly, a step of local backup of the state of this node considered (21), at the level of a storage medium (31) for this node considered (21), the link (6) between this storage medium (31) and this node considered (21) being able to be redirected from this storage medium (31) to another node (23), thereafter, a step of relaunching: either of the node considered (21) if the latter is not defective, on the basis of the local backup of the state of this node considered (21), or of an operational node (23) different from the node considered (21), if the node considered (21) is defective, on the basis of the recovery of the local backup of the state of this node considered (21), by redirecting said link (6) between the node considered (21) and its storage medium (31) so as to connect said storage medium (31

Abstract: A first host system in a multipath storage system acts on behalf of a second host system when the second host system is unable to access a solid state drive (SSD). The first host system configures a bitmap table using an SSD controller of the first host system to access memory of the SSD associated with the second host system. The memory accessed on behalf of the second host system may be in a region including persistent memory, base address register memory and/or controller memory buffer of the second host system.

Abstract: Disclosed herein are systems and method for collecting an optimal set of log files for generating error reports. In one aspect, a method may comprise detecting an error in a software component and retrieving a function call trace associated with the software component. The method may comprise comparing the retrieved function call trace with a plurality of known call traces, wherein each respective known call trace of the plurality of known call traces is associated with a respective set of log files to be collected for error analysis. The method may comprise identifying, based on the comparison, a known call trace for which a similarity value with the retrieved function call trace is greater than a threshold similarity value. The method may comprise collecting a set of log files for the error based on an associated set of log files for the known call trace and generating an error report.

Abstract: An object of the present invention is to provide a redundant information processing system that can continue its operation without stopping as much as possible. To achieve this, the information processing system includes multiple storage nodes including processors, memories, and storage devices, as well as a network for connecting the storage nodes. The processor of at least one storage node performs the steps of: obtaining the configuration information of the information processing system; obtaining first failure information related to a first failure occurred in the information processing system; calculating the availability level of the information processing system when a second failure further occurs, based on the configuration information and the first failure information; and controlling the operation of the system based on the availability level. Then, the processor outputs a notification.

Abstract: Inputs to a system under test (SUT) are modeled as a collection of attribute-value pairs. A set of testcases is executed using an initial set of test vectors that provides complete n-wise coverage of the attribute-value pairs. For each execution of the testcases, for each attribute-value pair, a non-binary success rate (SAV) is computed based on the binary execution results. in response to a success rate of an attribute-value pair being below a predetermined threshold, a subset of testcases that use the attribute-value pair is identified. Further, sets of code paths for the subset of testcases are identified, each set of code path respectively corresponding to a testcase from the subset of testcases. Further, an intersection of the sets of code paths is determined. Code paths of the SUT that are in the intersection, are highlighted to represent a soft failure with the SUT.

Abstract: Techniques for access operation status signaling for memory systems are described. In some examples, a memory system may respond to access commands from a host system by performing access operations such as read or write operations. In accordance with examples as disclosed herein, a system may be configured to support access operation status signaling between a host system and a memory system, which may improve the ability of the system to adapt to various access scenarios, including when access operation completion is delayed. For example, when a memory system is performing an error recovery or media management operation, the memory system may indicate that the error recovery or media management operation is being performed or is otherwise ongoing. Such status signaling may indicate that the memory system is actively performing operations, which may be used to inhibit a reset or reinitialization by a host system.

Abstract: Embodiments are described for enabling file level recovery (FLR) process for dynamic disks in a data storage system. A source virtual machine (VM) stores data files after a data backup operation and to be restored to a destination VM using the FLR operations; a copy of the source VM is spawned and has an Instant Recover (IR) execution component performing IR operations. A helper VM is spawned using the IR operation of the source VM copy. A FLR agent installed on each of the source VM copy and the destination VM is configured to identify a disk on the source VM as being a dynamic disk, and to allow the helper VM to act as a file transfer facilitator between the source VM and the destination VM. In this way, dynamic disks on the source VM are distinguished from regular disks even when they has the same UUID.

Abstract: In some embodiments, apparatuses and methods are provided herein useful to providing seamless redelivery of missing data from a message broker to a requesting client computer. In some embodiments, there is provided a system for providing seamless redelivery of missing data including a requesting client computer generating a first data request in response to a user's e-commerce activity over an internet; a message broker comprising one or more first control circuits; a backup control circuit configured to copy a plurality of messages as a plurality of object data into an object store; and a reconciliation control circuit configured to: receive a second data request in response to a determination by the requesting client computer that a data loss has occurred; download the missing data from the object store; and provide the missing data to the message broker.

Abstract: An example method includes receiving incident data for historical incidents of downtime or interrupted service. The incident data includes identification information about one or more first computing applications, devices, or services affected by the downtime or the interrupted service. The incident data further includes timing information relating to the historical incidents and version history information of the one or more first computing applications, devices, or services. The method further includes receiving root cause data indicating a cause of the historical incidents and receiving action data indicating a corrective or preventative action taken or to be taken in response to each of the historical incidents. The method further includes training a machine learning algorithm using the incident, root cause, and action data to create a trained model configured to determine a root cause and a new corrective or preventative action for a new incident.

Abstract: A system for tracking events of interest can include at least one volatile counter; a nonvolatile storage coupled to the at least one volatile counter, the nonvolatile storage storing a bit for each top volatile count number of events identified by the at least one volatile counter; a backup power source coupled to the at least one volatile counter; and readout circuitry and control logic coupled to the one or more of the at least one volatile counter and to the nonvolatile storage, the readout circuitry and control logic being configured to control operations of the at least one volatile counter during an error event and determine a total number of events.

Abstract: Methods, apparatuses and systems for cloud-based disaster recovery are provided. The method, for example, includes configuring, at a cloud-based computing platform, workloads including servers used by a client machine, the workloads configured based on user information provided at the client machine, determining if the workloads are compliant with one or more objectives, if the configured workloads are compliant with the one or more objectives, merging the workloads for creating a declaration comprising generated steps to which the servers are added, restoring the servers for each of the generated steps of the declaration upon receiving, from the client machine, a failure indication associated with the servers.

Abstract: Systems and methods are provided for detecting fault conditions associated with an distribution point in a communication system using retrain event data. The retrain event data is collected for all of the ports associated with a target site of the distribution point. The collected retrain event data can then be organized into several different categories such as upstream related retrain events and downstream related retrain events. A screening criteria can be selected that is associated with a fault condition. The screening criteria can be evaluated using one or more evaluation metrics. Each evaluation metric can be based on normalized parameters generated from the categorized retrain event data. If all of the evaluation metrics associated with a screening criteria are satisfied, then the screening criteria is satisfied and the target site is determined to have a fault condition.

Abstract: Methods, apparatuses and systems for cloud-based disaster recovery are provided. The method, for example, includes configuring, at a cloud-based computing platform, a declaration including servers associated with a plurality of selected workloads configured based on information provided by a user for corresponding servers used at a client machine, the declaration including generated steps listing the servers, and restoring the servers for each of the generated steps of the declaration upon receiving, from the client machine, a failure indication associated with the servers.

Abstract: Methods and devices for providing reserved failover capacity across a plurality of data centers are described herein. An exemplary method includes determining whether a management process is executing at a first data center corresponding to a first physical location. In accordance with a determination that the management process is not executing at the first data center corresponding to the first physical location a host is initiated at a second data center corresponding to a second physical location and the management process is executed on the initiated host at the second data center corresponding to the second physical location.