Abstract: Embodiments of the invention are directed to systems and methods for improving wear leveling performance in solid-state memory. The embodiments described herein make more consistent the number of wear leveling operations that need to be performed, so that sudden spikes in the number wear leveling operations may be reduced in solid-state memory. In one embodiment, a rule-based wear leveling approach is used to spread out the execution of wear leveling operations that otherwise would have been triggered in clusters. Under the rule-based approach, wear leveling is periodically triggered by a specified interval of erase counts associated with a unit of solid-state memory such as a group of blocks, rather than by a threshold based on erase counts.

Abstract: A storage controller may be configured to assess the reliability of a solid-state storage medium. The storage controller may be further configured to project, forecast, and/or estimate storage reliability at a future time. The projection may be based on a currently reliability metric of the storage and a reliability model. The portions or sections of the solid-state storage media may be retired in response the projected reliability metric failing to satisfy a reliability threshold. The reliability threshold may be based on data correction and/or reconstruction characteristics. The projected reliability metrics of a plurality of erase blocks of a storage division may be combined, and one or more of the erase blocks may be retired in response to determining that the combined reliability metric projection fails to satisfy the reliability threshold.

Abstract: A method detects soft failures as follows. A set of artifacts being generated by at least one process in a system is monitored. A number of artifacts being generated by the process is determined to be below a given threshold in response to the monitoring. The process is monitored in response to the determination. A current state of the process is determined in response to the analyzing. A notification is generated in response to the current state of the process including a set of abnormal behaviors.

Abstract: A method, system, and computer program product detect soft failures as follows. A set of artifacts being generated by at least one process in a system is monitored. A number of artifacts being generated by the process is determined to be below a given threshold in response to the monitoring. The process is monitored in response to the determination. A current state of the process is determined in response to the analyzing. A notification is generated in response to the current state of the process including a set of abnormal behaviors.

Abstract: Diagnostic data of a multimodal enhanced communication system is processed at a central diagnostic service by normalizing detected errors based on modalities, traffic volumes, and/or individual user patterns such that failures can be efficiently and accurately analyzed across the communication system. Configurable thresholds may be used for modality-specific logs, traffic volume normalized errors, and persistent user adjusted results to optimize alerts issued to administrators.

Abstract: A time limit for a printer to be restored to a printable state after an occurrence of a print error that prevents the printer from printing is variably set. If the printer is not in a printable state when an elapsed time since the print error occurred in the printer reaches the time limit being set or exceeds the time limit, a print start command is transmitted to another printer, and a job assignment is switched to the other printer.

Abstract: A method is used in analyzing drive errors in data storage systems. An error tag and total good I/O count are maintained for a drive. For each failed I/O, the following is performed. An error weight per error is retrieved. A new error tag is calculated from the error weight, a previous error tag, and the total good I/O count. An error ratio is calculated from the new error tag and a total I/O count. The error ratio is compared with thresholds. If one or more of the thresholds has been crossed, action is taken on the drive. The error tag is reduced as good I/O is produced.

Abstract: Various embodiments of systems and methods for monitoring a system are described herein. A request is received from a user to generate a system watch for monitoring a system. The request may include a primary system monitoring parameter to be included in the system watch. One or more system monitoring parameters correlated to the primary system watch are identified from a system monitoring parameter database. The system watch is generated based on the primary system monitoring parameter and at least one secondary system monitoring parameter from the identified one or more system monitoring parameters. In one aspect, the system monitoring parameter database is built based on system watch related input received for a plurality of system watches.

Abstract: A distributed object storage system has a monitoring agent and/or a maintenance agent configured to determine for each of a plurality of repair tasks the actual concurrent failure tolerance of a corresponding repair data object. The actual concurrent failure tolerance corresponds to the number of storage elements that store sub blocks of the repair data object and are allowed to fail concurrently.

Abstract: An abnormality detection apparatus includes: a performance information obtaining unit to obtain load information of a computer; a response time obtaining unit to obtain a response time of the computer; a first abnormality determination unit to determine whether the computer is in abnormal operation state based on the load information; a second abnormality determination unit to determine whether the computer is in abnormal operation state based on the response time, when the first abnormality determination unit determines that the computer is in abnormal operation state; and an abnormality notification unit to perform notification of an abnormality, when the second abnormality determination unit determines that the computer is in abnormal operation state.

Abstract: A method facilitating the support of a communications device via diagnostic tools on the communications device and a remote computing device of monitoring predefined data elements associated with the operation of said communications device.

Abstract: Systems, methods, and other embodiments associated with detecting a node death in a clustered distributed system are described. In one embodiment, a method includes transmitting a ping message to a peer node in the network. If a reply to the ping message is not received from the peer node, a query is sent to table of port identifiers that lists ports in the cluster. In one embodiment, the query includes a port identifier associated with the peer node. The peer node is declared as inactive/dead when the query fails to locate a match in the table for the port identifier. When the query locates a match in the table for the port identifier, another ping message is periodically transmitted to the peer node.

Abstract: Apparatus having corresponding methods and computer-readable media comprise an encoder configured to provide encoded data according to an error correction code; a flash memory interface configured to write the encoded data to a location in flash memory, and to read the encoded data from the location in the flash memory; a decoder configured to decode the encoded data read from the location in the flash memory, and to indicate a number of resulting decode errors; and a retirement module configured to retire the location responsive to a number of resulting decode errors reaching an error threshold T.

Abstract: A client device in a distributed system may include a timer for timing a request time duration substantially including a period of time that the client device is waiting for results to be received via a network from a server in response to a request sent by the client device. A network interface may receive a value of a service time duration from the server. The service time duration may correspond to time that the server spent servicing the request. A processor may subtract the service time duration from the request time duration to thereby calculate a difference time duration, and automatically control the network interface to issue one or more alert messages to a network operation center (NOC) via the network when the difference time duration is greater than a difference time threshold. The difference time threshold may be determined according to a type of the request.

Abstract: A communication device configured for transmission of Acknowledgement and Negative Acknowledgement (ACK/NACK) is described. The communication device includes a processor and instructions stored in memory. The communication device determines one or more thresholds based on a size of one or more code words and generates a compressed ACK/NACK sequence. The compressed ACK/NACK sequence identifies one or more correctly received code words and one or more incorrectly received code words if the number of incorrectly received code words is less than the threshold. If the number of incorrectly received code words is greater than the threshold, the compressed ACK/NACK sequence indicates that all of the one or more code words were incorrectly received.

Abstract: In a memory testing method for testing a memory module of a computing device, an operating voltage of the memory module is adjusted to a first voltage or a second voltage. A predetermined data set is written into the memory module after the operating voltage of the memory module is adjusted, and the written data set is read out from the memory module, to accomplish a data writing and reading process of the memory module. A register value that presents how many memory errors have occurred during the data writing and reading process is acquired from an ECC register of the memory module, to determine whether the memory module is stable during the adjusting of the operating voltage according to the register value.

Abstract: A method and apparatus including a monitoring and correction module that monitors process metrics to identify a steady-state for a process, detects a deviation from the steady-state for the process, and executes a corrective measure automatically to reduce an impact of the process in response to the deviation by a monitoring and correction module. The monitoring and correction module also analyzes the deviation to determine whether the deviation is negatively impact in performance for other processes.

Abstract: A building management strategy includes using exponentially weighted moving averages with statistical models to detect changes in the behavior of the building management system. Detected changes in the behavior of the system may indicate a detected fault, a change in a predicted behavior, or a need for the statistical models to be updated.

Abstract: A storage device, which performs input/output processing on a memory device through a relay apparatus, includes a memory and a processor coupled to the memory. The processor executes a process including: determining whether or not a cumulative value accumulated according to occurrence of error in the memory device during the input/output processing reaches a predetermined threshold value; comparing when the determined cumulative value is greater than or equal to the threshold value, number of input/output processing on the memory device with number of input/output processing on another memory device mounted on the relay apparatus, and determining whether or not there is a bias; determining when the bias is determined, whether or not a connection status is normal with respect to the relay apparatus; and detaching when it is determined that the connection status of the relay apparatus is normal, the connection to the memory device.

Abstract: A system for detecting network intrusions and other conditions in a network is described. The system includes a plurality of collector devices that are disposed to collect data and statistical information on packets that are sent between nodes on a network. An aggregator device is disposed to receive data and statistical information from the plurality of collector devices. The aggregator device produces a connection table that maps each node on the network to a record that stores information about traffic to or from the node. The aggregator runs processes that determine network events from aggregating of anomalies into network events.

Abstract: A system and method analyze reliability of an electronic device using a computing device. The method generates a component coding rule for components of the electronic device, establishes a BOM table for the electronic device according to the component coding rule, and generates component codes for the components according to the component data. The method further classifies the components into different component types according to the component codes, and calculates a failure rate for each of the components according to a parameter equation, obtains mean time between failures (MTBF) of the electronic device by calculating a sum of the failure rates of all the components. In addition, the method generates a reliability analysis report of the electronic device according to the MTBF of the electronic device. and outputs the reliability analysis report to an output device.

Abstract: A system for detecting network intrusions and other conditions in a network is described. The system includes a plurality of collector devices that are disposed to collect data and statistical information on packets that are sent between nodes on a network. An aggregator device is disposed to receive data and statistical information from the plurality of collector devices. The aggregator device produces a connection table that maps each node on the network to a record that stores information about traffic to or from the node. The aggregator runs processes that determine network events from aggregating of anomalies into network events.

Abstract: A baseline adjusting technique allows automatically adjust the baselines of metrics affected by a configuration change a monitored system. If a configuration change is detected, a performance management system retrieves linkages between the changed configuration parameter and one or more metrics. The performance management system then adjusts the baselines of the metric using the baseline adjusting algorithm retrieved from the linkage.

Abstract: Techniques for managing errors within an application are provided. Embodiments monitor errors occurring in each of a plurality of portions of the application while the application is executing. An error occurring in a first one of the plurality of portions of the application is detected. Additionally, upon detecting the error occurring in the first portion, embodiments determine whether to prevent subsequent executions of the first portion of the application.

Abstract: According to one embodiment, a semiconductor memory stores a program for causing a memory controller to operate in at least one of first and second modes. In the first mode, for each of the blocks, the memory controller autonomously erases and writes data and reads the written data, and determines that the block or the semiconductor storage device is defective when a count of errors in the read data exceeds a correction capability or a threshold. In the second mode, when error correction of read substantial data fails, the memory controller reads the substantial data which failed in the error correction using a read level shifted from the present read level.

Abstract: A method and system of monitoring computer network activity including determining a first phase frequency estimate, associated with a first frequency vector, determined in response to receiving first bits from a first plurality of remote computer network devices. The first bits received from the first plurality of remote devices in response to satisfying a first activity threshold. Also, determining a second phase frequency estimate associated with a second frequency vector and determined in response to receiving second bits from a second plurality of remote devices. The second bits received from the second plurality of remote devices in response to a second activity threshold being satisfied. The second phase frequency estimate determined in response to the first phase frequency estimate exceeding a global threshold. Further, providing a frequency moment Fp in response to the second phase frequency estimate exceeding a refined threshold.

Abstract: A method is provided for detecting when users are being adversely impacted by poor system performance. A system health indicator is determined that is based on the amount of work that is blocked waiting for each of a set of an external events and combined with a heuristic that is based on the number of users waiting for the work to complete. The system health indicator is compared to a threshold such that an alert is generated when the system health indicator crosses the threshold. However, the system health indicator is designed so that an alert is only generated when a significant user base is or will in the near future experience a problem with the system. Furthermore, the system health indicator is designed to vary smoothly to maintain its suitability for the application of predictive technology.

Abstract: A system and method for determining media to be exported out of a media library is described. In some examples, the system determines a media component to be exported, determines the media component is in the media library for a specific process, and exports the media component after the process is completed.

Abstract: A method and system for controller level identification and isolation of a degraded physical link (PHY) in a serial attached small computer system interface (SA-SCSI) or SAS domain. The method and system uses computer readable code embodied within the controller level of an SAS domain to monitor a plurality of PHY pairs associated as connecting through a wide port. The invention compares a history of PHY pair errors to a tunable timer to determine if PHY errors reach a threshold. Should the threshold be exceeded, the controller disables the error prone PHY pair and delivers a notification. The controller may then re-enable the disabled PHY after user action or port power up.

Abstract: The present invention determines the type of each piece of system information including a plurality of index values indicative of abnormality levels of a monitoring target device, as follows. The system information and identification information for the system information are sequentially received from the monitoring target device configured to sequentially output the system information together with the identification information for the system information. The piece of the received system information is compared with a predetermined determination criterion and thus determined to be of a particular type based on a result of the comparison. The determined type is output in association with the identification information. Input information indicative of a true type is accepted and stored in association with the identification information. The determination criterion is updated based on the piece of the system information and the information indicative of the true type.

Abstract: A method begins by a processing module determining a retrieval threshold for retrieving a set of encoded data slices from a dispersed storage network (DSN), wherein the set of encoded data slices represents data encoded using a dispersed storage error encoding function having a pillar width of “n”, a decode threshold of “k”, and an encoding ratio of n?k>k and wherein the retrieval threshold is in accordance with the encoding ratio. The method continues with the processing module issuing data retrieval requests to the DSN for the set of encoded data slices and receiving encoded data slices of the set of encoded data slices to produce received encoded data slices. The method continues with the processing module decoding the received encoded data slices to recapture the data when a number of received encoded data slices compares favorably to the retrieval threshold.

Abstract: Technologies are described herein for allowing a computer system to recover from an invalid configuration, without requiring any modifications to the hardware of the computer system by the user. The computer determines whether a boot-fail counter exceeds a threshold value. If the boot-fail counter exceeds the threshold value, the computer executes an exception processing routine. In one aspect, the exception processing routine causes the computer to reset configuration settings stored in a memory area of the computer to default configuration settings. If the boot-fail counter does not exceed the threshold value, the computer increments the boot-fail counter and executes system initialization routines for booting the computer. Upon successfully completing the system initialization routines, the computer resets the boot-fail counter.

Abstract: Control apparatus having pre-defined error-states and related methods are described. An example method of controlling a field control device described herein includes receiving, via a controller coupled to the fluid control device, a communication from a control system remotely located from the controller to operate the field control device during a non-error condition, detecting whether an error condition has occurred, and operating the field control device based on a pre-determined error-state instruction stored in the controller when the error condition is detected.

Abstract: A method of managing an electrical power supply outage on board an aircraft, including the following operations: —detection of an electrical power supply outage, —measurement of a duration of the power supply outage by measuring a discharge time of a capacitor and comparing this measured duration with a threshold duration, —saving a long outage indication when the duration of the outage is greater than a threshold duration. The disclosed embodiments also relates to a system implementing this method and including: —a circuit for detecting an electrical power supply outage, —a circuit for measuring a duration of the power supply outage, and—a circuit for managing indications able to manage emissions of signals according to the measured duration of the power supply outage.

Abstract: A system and method of creating an extra redundancy in a RAID system is disclosed. In one embodiment, one or more RAID arrays are created. Each RAID array comprises a plurality of disk drives. Further, a respective dedicated hot spare is created for each RAID array. Furthermore, data is copied from each RAID array to the respective dedicated hot spare using a copyback process based on a predetermined controller usage threshold value.

Abstract: Systems and methods to manage memory refreshes at a memory controller are disclosed. A method includes determining, at a memory controller device, that a number of transmission errors between a memory controller port and a memory redrive device exceeds an error threshold. The method may include initiating a first link retraining process between the memory controller port and the memory redrive device. The method may further include placing one or more dynamic random access memory modules associated with the memory redrive device in a self-refresh mode. The method may also include removing the one or more dynamic random access memory modules from the self-refresh mode after the link retraining process has completed. The method may further include enabling overlapping refreshes of the one or more dynamic random access memory modules.

Abstract: A set of log entries is automatically inspected to determine a bug. A training set is utilized to determine clustering of log identifications. Log entries are examined in real-time or retroactively and matched to clusters. Timeframe may also be matched to a cluster based on log entries associated with the timeframe. Error indications may be outputted to a user of the system in respect to a log entry or a timeframe.

Abstract: Marking memory chips as faulty when a fault is detected in data from the memory chip. Upon detecting that a plurality of memory chips are faulty, determining which of a plurality of memory channels contains the faulty memory chips. Marking one of a plurality of memory channels as failing in response to determining that the number of failing memory chips has exceeded a threshold.

Abstract: According to an aspect of the invention, an information processing apparatus includes a main body having a top face, a display connected to the main body by a hinge and pivotally moves between a first state where the top face is covered with the display and a second state where the top face is exposed, a counter which stores a number of times the state has changed between the first state and the second state, a monitor which detects a malfunction in the hinge when the number of times reaches a given number, and a data transmitter which sends data corresponding with the detected malfunction.

Abstract: The method comprises and executes constitutional information collection processing of collecting constitutional information of the apparatus, constitutional information of a logical unit which is a logical existence obtained by abstracting the apparatus, constitutional information of the application and constitutional information of the dependency relation of the performance established among the apparatus, the logical unit and the application; performance information collection processing of collecting each performance information of the apparatus, the logical unit and the application; and saturation indication detection processing of analyzing a correlation between a change value with time of the performance information of the apparatus and a change value with time of the performance information of the logical unit having the dependency relation of the performance with respect to the apparatus for a predetermined period, and detecting that the apparatus has the saturation indication, when a correlation coef

Abstract: Metrics associated with computer code files within a codebase may be analyzed to identify bug-prone files. Functions of the method or system may determine metrics corresponding to each file of a plurality of codebase files within an application codebase. The functions may also store the metrics corresponding to each codebase file in a record of a database table, rank order the plurality of codebase files according to at least one metric, and flag each codebase file having a ranking over a threshold value of the metric. The codebase file metrics may describe fault-inducing characteristics of the plurality of codebase files and include both a total number of previous faults and a total number of changes that are associated with each codebase file.

Abstract: Processes, computer-readable media, and machines are disclosed for reducing a likelihood that active functional components fail in a computing system. An active monitoring component receives metrics associated with different active functional components of a computing system. The different active functional components contribute to different functionalities of the system. Based at least in part on the metrics associated with a particular active functional component, the active monitoring component determines that the particular active functional component has reached a likelihood of failure but has not failed. In response to determining that the particular active functional component has reached the likelihood of failure but has not failed, the active monitoring component causes a set of actions that are predicted to reduce the likelihood of failure.

Abstract: A computer system includes server computers, application program storage modules, a communication network, client computers, a database storage module, and a test data presentation module. The database storage module stores event data. The event data logs events that occur in the server computers during performance test runs. The test runs are performed in connection with a plurality of projects. The projects are defined for performance testing the application programs. The test data presentation module generates a test data screen display for rendering by one of the client computers. The test data screen display includes a data table. The data table presents event data relating to events that occurred during test runs for two or more of the projects.

Abstract: The APPARATUSES, METHODS AND SYSTEMS FOR A REAL-TIME MULTI-HOP ROUTE REPORTER (“REPORTER”) facilitates generation and provision of relevant and descriptive network performance reports that are efficient, economical and useful to executives, managers and other non-IT professionals and/or personnel. The REPORTER may be implemented as a multi-tiered web application that may collect, analyze and update database records which facilitate generation of the descriptive report. The REPORTER may include facilities for establishing correlations between various devices in the same network in order to evaluate and report the network performance.

Abstract: A method for reducing false alarms in a monitoring system comprising the steps of: providing an initial fault set (or a preliminary fault set) and using a decision process to successively reduce this initial fault set to a fault ensemble, said decision process using increasing probability or confidence in the initial fault set to generate the fault ensemble, which is considered to reflect a true abnormal condition; the decision process comprising at least two steps: the first step is generating a preliminary fault set by using a standard anomaly detection method with the additional variable (or adaptive) thresholds or temporal filters; the second step is using the preliminary fault set to generate at least one fault ensemble, each of which comprises a reduced number of refined faults that represent a more confident explanation of the cause(s) of an abnormal condition.

Abstract: Thread count analyzer programming enables automated monitoring of open process thread counts for a middleware web service, for example, in the context of Communication Enterprise Services (CCES) for providing customer account related notifications to customers/users of a mobile communications network. Web server thread counts are compared to first thresholds. In response to a high web server thread count, an impacted application server is identified, for example, by comparing application server thread counts to second thresholds. The procedure initiates a thread dump with regard to the impacted application server and provides notification to a support person together with information enabling access to a page of thread dump data. The exemplary thread count analysis can automatically detect a high thread count problem before there is an outage or any impact to the customer, accumulate relevant thread data, store such data in an accessible form, and provide automatic notice(s) for support personnel.

Abstract: A cloud migration system is described herein that provides capacity management and disaster recovery by detecting peak load conditions and automatically moving computing to another computing resource (and back) and by providing computing across two or more clouds and moving completely to one in the case of a disaster at one site. The system monitors loads within a datacenter and detects a threshold that indicates that the current load is nearing the datacenter's capacity. Upon detecting that the threshold will be reached, the system facilitates an orderly move of at least some datacenter load to another datacenter or cloud-based resources. The system can also be used as a disaster recovery architecture at a datacenter/network level to manage fast workload transition in case of disaster. Thus, the system allows enterprises to build smaller and more efficient datacenters that leverage other resources for rare extra loads.

Abstract: Operational speed of an integrated circuit chip is measured using one or more speed measurement elements, such as ring oscillators, disposed at various regions of the chip. Each speed measuring element can include several ring oscillators, each corresponding to a different technology threshold voltage. The speed measurement data collected from the speed measurement elements can be used to determine on-chip variation (OCV). Circuitry either on the chip itself or, alternatively, external to the chip can adjust a chip operational parameter, such as core voltage or clock speed, in response to the speed measurement data. Speed measurement data can be read out of the chip through JTAG pins or an interface to an external host.

Abstract: A method and system of monitoring computer network activity including determining a first phase frequency estimate, associated with a first frequency vector, determined in response to receiving first bits from a first plurality of remote computer network devices. The first bits received from the first plurality of remote devices in response to satisfying a first activity threshold. Also, determining a second phase frequency estimate associated with a second frequency vector and determined in response to receiving second bits from a second plurality of remote devices. The second bits received from the second plurality of remote devices in response to a second activity threshold being satisfied. The second phase frequency estimate determined in response to the first phase frequency estimate exceeding a global threshold. Further, providing a frequency moment Fp in response to the second phase frequency estimate exceeding a refined threshold.

Abstract: A method, system, and product for monitoring the availability of a data processing system are proposed. The system runs a management application involving the periodic transmission of blocks of data from multiple local computers to a central computer. Whenever a block of data must be transmitted by a generic local computer, an expected transmission delay of a next block of data (with respect to the current one) is estimated and attached to the block of data. The central computer receiving the updated block of data can calculate an expected receiving time of the next block of data accordingly. If the next block of data is not received in due time, the central computer determines a failure of the local computer. The central computer also scans a subset of ports of the local computer, to ascertain whether the problem is due to a temporary unavailability of the application.