Abstract: A data protection method for damaged memory cells is provided. A power-on self-test (POST) is executed, and an initial backup memory is reserved in a memory. An operating system (OS) is executed, and data is loaded from a kernel region of the OS in the memory into a mirror region, so that when a processor accesses the data in the kernel region, it also accesses the data in the mirror region. An uncorrectable error (UE) is detected to determine a damaged page, and a backup page is selected from the initial backup memory or dynamically obtained from the OS to back up data in the damaged page. A mapping address of the damaged page and backup page are recorded into a page mapping table in a memory controller. Accordingly, when the OS accesses the damaged page, the memory controller accesses the backup page instead according to the page mapping table.

Abstract: In general, techniques are described for enabling a restartable file system. A computing device comprising a processor that executes an operating system may implement the techniques. The processor executes kernel and file system functions of the operating system to perform an operation, where both types of functions call each other to perform the operation. The operating system stores data identifying those of the kernel functions that called the file system functions. In response to determining that one of the file system functions that was called has failed, the operating system accesses the data to identify one of the kernel functions that most recently called one of the file system functions, and returns control to the identified one of the kernel functions without executing any of the file system functions called after the identified one of the kernel functions and prior to the one of the file system functions that failed.

Abstract: A process control system is provided having a plurality of I/O devices in communication using a bus. A primary redundant I/O device and a secondary redundant I/O device are coupled to the bus, where the secondary redundant I/O device is programmed to detect a primary redundant I/O device fault. The secondary redundant I/O device, upon detecting the primary redundant I/O device fault, publishes a primary redundant I/O device fault message on the bus. The controller may deactivate the primary redundant I/O device and activate the secondary redundant I/O device responsive to the primary redundant I/O device fault message.

Abstract: Embodiments are directed to establishing the integrity of a portion of data on at least one level of a plurality of network stack levels and automatically continuing an established federation relationship between at least two federation computer systems. In an embodiment, a first federation computer system receives a digital signature corresponding to a computer system signed by a digital signature which includes the computer system's identity and other federation relationship information configured to establish a trusted federation relationship between a first federation computer system and a second federation computer system. The first federation computer system attempts to validate the received digital signature at a first level of a network stack and determines that the validation at the first network stack layer was unsuccessful. The first federation computer system then validates the received digital signature at a second, different level of the network stack.

Abstract: A method, article of manufacture, and apparatus for restoring data. In some embodiments, this includes determining an object to be recovered, determining a representation of the object, and requesting the representation of the object from a data resource system. In some embodiments, the representation of the object is a hash value of the object. In some embodiments, the representation of the object is a segment of the object.

Abstract: Methods and apparatus are provided for determining a lowest total cost maintenance plan. The method comprises receiving a sequence of maintenance actions in an order of a waiting time for each maintenance action, wherein one of the maintenance actions is likely to repair the failure mode. Each maintenance action has an associated cost equal to a waiting time cost, an execution time cost and a material cost, wherein the waiting time of each maintenance action is the time required to requisition and receive material required to perform the maintenance action. The method also constructs a maintenance plan comprising a primary requisition and a secondary requisition by assigning each of the sequence of maintenance actions to one of the primary and secondary requisition.

Abstract: Memory devices and/or error control codes (ECC) decoding methods may be provided. A memory device may include a memory cell array, and a decoder to perform hard decision decoding of first data read from the memory cell array by a first read scheme, and to generate output data and error information of the output data. The memory device may also include and a control unit to determine an error rate of the output data based on the error information, and to determine whether to transmit an additional read command for soft decision decoding to the memory cell array based on the error rate. An ECC decoding time may be reduced through such a memory device.

Abstract: Certain embodiments of the invention may include systems, methods, and apparatus for signal processing-based fault detection, isolation and remediation. According to an example embodiment of the invention, a method is provided for detecting and remediating sensor signal faults. The method may include monitoring data received from one or more sensors; determining confidence values for one or more parameters associated with the one or more sensors based at least in part on the monitored data; determining a combined confidence for each of the one or more sensors; and outputting a remediated value and status based at least in part on the monitored data and the combined confidences.

Abstract: A messaging system comprises a message source, a message receiver and a message service. The message service is intermediate of the message source and message receiver, and a compensation component is established at the message source. A one way message is transmitted from the message source, where the one-way message is part of a plurality of one way messages of an overall business transaction. The message is received at the message service and is transmitted to the message receiver, which processes the received message. The message receiver transmits a communication indicating success or failure of the processing of the message. The system causes compensation logic defined by a compensation component to execute responsive to receiving an indication of a failure of part of the overall business transaction despite the communication from the message receiver indicated that processing of the particular one way message succeeded.

Abstract: There is provided a system including a cluster 11, a cluster 12 and an image server 20. A host 101a constituting the cluster 11 has a root file system 111a used to operate the host 101a in a local disk. The image server 20 has a root file system 221a used to operate the host 101a, and the host 101a virtually constructs a root file system 121a by mounting the root file system 221a. When the root file system 111a is varied, the host 101a synchronizes the root file system 111a with the root file system 121a. The same applies to host 102a constituting the cluster 12.

Abstract: A method and system for overriding state information programmed into a processor using an application programming interface (API) avoids introducing error conditions in the processor. An override monitor unit within the processor stores the programmed state for any setting that is overridden so that the programmed state can be restored when the error condition no longer exists. The override monitor unit overrides the programmed state by forcing the setting to a legal value that does not cause an error condition. The processor is able to continue operating without notifying a device driver that an error condition has occurred since the error condition is avoided.

Abstract: A method and system that comprises a central processing unit (CPU) and a first and second network adapter that are teamed together is disclosed. The network adapters in the team may be adapted to offload connections to transfer a plurality of packets. A program, executing on the CPU, may reload an offloaded connection established by the first network adapter onto the second network adapter if one of a plurality of packets associated with the offloaded connection was received on the second network adapter.

Abstract: A service condition, a cause of a malfunction, or another aspect of a device in a large group of devices to be managed can be analyzed in an accurate and efficient manner. A complete test involving the entire number of devices in a large group of managed devices (T) is periodically performed to determine whether the devices are operating normally or have a malfunction; a test result (Ic) is recorded for each cycle of the complete test, and a device that has been found to be malfunctioning is repaired or replaced; and analysis data G, E are created showing a malfunctioning frequency (N) of each of the managed devices (T) on the basis of the test result (Ic) of the complete test that spans a plurality of cycles.

Abstract: A mechanism is provided for controlling a solid state disk. A failure detector detects a failure in the solid state disk. Responsive to failure detector detecting a failure, a status degrader sets a degraded status indicator for the solid state disk. Responsive to the degraded status indicator, a degraded status controller maintains the solid state disk in operation in a degraded operation mode.

Abstract: Methods, systems, and devices are described for managing virtual network services provided to a network. A number of processors in a self-contained network services module may execute a number of separate network service application instances associated with providing network services to the network. State information for each network service application instance may be stored within a shared memory, and a fault in one of the network service application instances may be identified based on the stored state information. The identified fault may be dynamically remedied in the one of the network service application instances.

Abstract: Embodiments of circuits for processors with multiple redundancy techniques for mitigating radiation errors are described herein. Other embodiments and related methods and examples are also described herein.

Abstract: The invention includes a computerized method responding to a navigation cue from a user by saving the writable state of the application and directing the computer through the window operating system to perform the navigation task 36 indicated by the navigation cue. The invention includes the following, which will each be discussed in turn. An alteration mechanism including means for altering window operating system by altering the hook triggered by each navigation cue to integrate saving the writable state. The window operating system integrating response to each navigation cue and saving the writable state. Source code artifacts which can be installed to implement navigation cues triggering saving the writable state. A business method generating revenue for a business entity.

Abstract: An apparatus, system, and method are disclosed for bad block remapping. A bad block identifier module identifies one or more data blocks on a solid-state storage element as bad blocks. A log update module writes at least a location of each bad block identified by the bad block identifier module into each of two or more redundant bad block logs. A bad block mapping module accesses at least one bad block log during a start-up operation to create in memory a bad block map. The bad block map includes a mapping between the bad block locations in the bad block log and a corresponding location of a replacement block for each bad block location. Data is stored in each replacement block instead of the corresponding bad block. The bad block mapping module creates the bad block map using one of a replacement block location and a bad block mapping algorithm.

Abstract: A method, article of manufacture, and apparatus for restoring data. In some embodiments, this includes receiving a request from a requestor to recover an object, determining segments of the object, identifying any segments of the object residing in the requestor, and processing the recovery request based on the identified segments residing in the requestor. In some embodiments, segments of the object includes hash values of the object. In some embodiments, processing the recovery request based on the determined segments includes using the identified segments residing in the requestor to reconstitute the object.

Abstract: Communication is arrested between a source data entity and a replicated data entity at a location declared in a DR mode. The DR mode is negotiated to a central replication management component as a DR mode entry event. The DR mode entry event is distributed, by the central replication management component, to each member in a shared group. The DR mode is enforced using at least one replication policy.

Abstract: A data processing apparatus and method provide fault tolerance when executing a sequence of data processing operations. The data processing apparatus has processing circuitry for performing the sequence of data processing operations, and a redundant copy of that processing circuitry for operating in parallel with the processing circuitry, and for performing the same sequence of data processing operations. Error detection circuitry detects an error condition when output data generated by the processing circuitry differs from corresponding output data generated by the redundant copy. Shared prediction circuitry generates predicted data input to both the processing circuitry and the redundant copy, with the processing circuitry and redundant copy then performing speculative processing of one or more data processing operations in dependence on that predicted data.

Abstract: Systems, methods, and computer readable media for tracking storage pool reservations are disclosed. According to one aspect, the subject matter described herein includes a system for tracking storage pool reservations. The system includes a storage entity having data storage space for storing data, the data storage space being divided into a plurality of slices. The system also includes one or more portions of non-volatile memory, different from the data storage space, for storing slice reservation statistics and information about requests that affect slice reservation statistics, wherein storing information in the portion of non-volatile memory is an atomic operation. The system further includes a control module for receiving a request that affect slice reservation statistics, storing information about the request in the portion of non-volatile memory, performing the request, and updating the slice reservation statistics and clearing the information about the request in the portion of non-volatile memory.

Abstract: Communication is arrested between a source data entity and a replicated data entity at a location declared in a DR mode. The DR mode is negotiated to a central replication management component as a DR mode entry event. The DR mode entry event is distributed, by the central replication management component, to each member in a shared group. The DR mode is enforced using at least one replication policy.

Abstract: A method of controlling a mobile terminal, method including performing, via a controller on the mobile terminal, data synchronizations with at least one external device, displaying, via a display on the mobile terminal, a list of data synchronization history corresponding to the performed data synchronizations, determining, via the controller, whether or not a particular data synchronization from the list includes an error, undoing, via the controller, the particular data synchronization to a state prior to the particular data synchronization, if it is determined that the particular data synchronization includes the error, and re-performing, via the controller, the particular data synchronization using data corresponding to the undone particular data synchronization.

Abstract: Each communication path between controllers and a plurality of storage devices has a plurality of expanders coupled in series. In order to shorten the time during which the communication path is not used for I/O, either (A) the length of time for which I/O suppression is set for the communication path is shortened, or (B) the overall time it takes for processing other than I/O processing is shortened. In the (A), a determination as to whether or not the coupling between the expanders has been disconnected is made for the I/O-suppressed communication path, and in a case where the result of this determination is negative, a discover process is carried out after releasing the I/O suppression with respect to this communication path. In the (B), the number of command issue times of updating routing control information of the expander is reduced.

Abstract: A disk recovery system and method is provided for recovering data from a redundant array of independent (or inexpensive) disks. The method is implemented in a computer infrastructure having computer executable code tangibly embodied on a computer readable storage medium having programming instructions. The computer readable storage medium is operable to: determine input/output (I/O) characteristics of one or more disks in an array; monitor the one or more disks in the array to determine when any of the one or more of the disks have failed in the array; and automatically rebuild the failed disk from a standby pool by nominating a disk in the standby pool based on the I/O characteristics of the one or more failed disks prior to failure.

Abstract: A storage controller performs: evaluating the pool groups based on a preset rule in order to determine an evaluation result for each pool group; using the evaluation results among the pool groups to determine which pool group is to be selected for performing allocation against portions of the one storage volume in response to receiving an instruction for rearrangement of data in the tiered storage, the instruction including a requirement to be satisfied in selecting a plurality of tiers within a pool group based on access characteristics for performing allocation against portions of the one storage volume, analyzing the pool groups according to the requirement to determine whether any of the pool groups is appropriate to possess the one storage volume for storing the data; and selecting the tiers within the pool group based on the access characteristics.

Abstract: A system and method for providing collaborative master data process management. A master data store comprises data for at least one data domain. A master data management module is configured to provide access to the data to one or more applications. A master data management service module provides at least one service providing access to the data based on a service-oriented architecture. A business process management module is configured to generate, execute and manage at least one business process related to the data domain. The at least one business process uses at least one of the at least one service provided by the master data management service module. A master data process module is configured to generate at least one data process comprising a business process involving an operation on the data.

Abstract: A first device port and a second device port are connected using a first cable and a second cable. The first device port and the second device port use a divisible number of lanes, X for communication. The first cable uses X? lanes, where X? is less than X. The second cable uses X-X? lanes, where X-X? is also less than X. If the first cable is disconnected or fails, then the second cable is used after a failover operation.

Abstract: A method tolerates virtual to physical address translation failures. A translation request is sent from a graphics processing device to a translation mechanism. The translation request is associated with a first wavefront. A fault notification is received within an accelerated processing device (APD) from the translation mechanism that a request cannot be acknowledged. The first wavefront is, stored within a shader core of the APD if the fault notification is received. The first wavefront is replaced with a second wavefront if the fault notification is received, the second wavefront being ready to be executed.

Abstract: An apparatus for controlling a supply voltage to an electronic processing arrangement comprising a processor or a memory element, the apparatus being configured to receive an output of the electronic processing arrangement and comprising: error detection means for detecting errors in an output of the electronic processing arrangement; and means for adaptively varying the supply voltage to the electronic processing arrangement based on an analysis of errors detected in the output of the electronic processing arrangement. The apparatus may further comprise means for correcting errors detected in the output of the electronic processing arrangement.

Abstract: A method to prevent failure on a server computer due to internally and/or externally induced shock and/or vibration. The method includes acquiring, by at least one sensor, analog acceleration data of components in a server computer. The data is then converted to digital format and stored within a motor drive assembly processor memory unit. The processor analyzes the stored data for existence of machine degradation. In response to detecting the existence of machine degradation, the motor drive assembly processor initiates remediation procedures. The remediation procedures include controlling rotating speed of moving devices or performing a complete system shut down.

Abstract: A method for recovering data from a failed tape cartridge is presented. The reliability of a tape cartridge is assessed via the number of read errors encountered. If the number or read errors is excessive, the tape cartridge is deemed unreliable and the tape cartridge is restricted from storing anymore data. A search is performed to look for duplicate data and if found a copy of the duplicate data is stored to a replacement tape cartridge. The replacement tape cartridge assumes all identity of the original failed tape cartridge.

Abstract: The system enables a call center to manage requests from remote computing clients for service. The system provides a number of software tools that allow technicians to perform routine maintenance and correct problems remotely. At the front-end, the system enables requests to be submitted by customers via various mediums, accesses a calendar to determine technician availability, determines the urgency of the request, and schedules an appropriate technician to address the reported problem. The system further includes tools that enable a technician to access a remote computing client to perform a number computer maintenance and diagnostics. Other tools enable the technician to correct problems that are detected through diagnostics. Calls to the call center are recorded and maintained in order to track pending issues and identify potential areas of improvement.

Abstract: A management computer 3 configures a coordinate plane from a first axis, which denotes a performance value of a virtual machine 1, and a second axis, which denotes a performance value of a volume 2, and partitions this coordinate plane into multiple areas in accordance with a prescribed criterion. The management server computes to which area of the areas a pair configuration of a virtual machine and a logical volume belongs, and stores the result. At a prescribed time, the management server 3 re-evaluates a coordinate of the pair configuration, and determines whether or not an initial area and a latest area match. The management server creates a migration plan so that the latest area matches the initial area.

Abstract: An information management device that manages the processing result of a print job processed by a print device through a network includes an information acquisition unit, an information output unit, a time setting unit, and a polling unit that performs an acquisition polling process in which the information acquisition unit acquires information on the print job that has been completed from the print device at a time when the information acquisition unit acquires the information on the print completion from the print device before the set waiting time elapses after the information output unit outputs the print job to the print device, and performs a checking polling process in which the information acquisition unit checks the print device for completion information at a time when the set waiting time elapses in a state that the information acquisition unit does not acquire the completion information from the print device.

Abstract: Systems and methods for automatic repair, replacement, and/or configuration of various network devices within a communications network are disclosed. The system may receive indication of a failed network device and automatically perform diagnostic on the network device to determine any problems associated with the hardware and/or software components within the network device. Subsequently one or more repair, replacement, and/or configuration procedures may be automatically initiated in an attempt to resolve the problems and restore the failed network device.

Abstract: A method of identifying at least one anomalous device in a configuration of series-connected semiconductor devices, comprising: selecting a device in the configuration; sending a command to the selected device, the command for placing the selected device into a recovery mode of operation; attempting to elicit identification data from the selected device while in the recovery mode of operation; if the attempt is successful, selecting a next device in the configuration of series-connected semiconductor devices and repeating the sending and the attempting to elicit; and if the attempt is unsuccessful, concluding that the selected device is an anomalous device.

Abstract: Systems and methods for reducing the cost and time required for diagnosing and fixing electronic devices are provided. A host electronic device may be configured to generate a log of events that it experiences. A help component may access the generated log and analyze the log to detect if the host device has experienced a problem. Data may then be exchanged between the help component and the host device in order to fix the detected problem.

Abstract: A memory system includes a management-information restoring unit. The management-information restoring unit determines whether a short break has occurred referring to a pre-log or a post-log in a NAND memory. The management-information restoring unit determines that a short break has occurred when the pre-log or the post-log is present in the NAND memory. In that case, the management-information restoring unit determines timing of occurrence of the short break, and, after selecting a pre-log or a post-log used for restoration, performs restoration of the management information reflecting these logs on a snapshot. Thereafter, the management-information restoring unit applies recovery processing to all write-once blocks in the NAND memory, takes the snapshot again, and opens the snapshot and the logs in the past.

Abstract: A connection expansion device connected to devices includes a plurality of ports to which devices are connected, a storage unit configured to record device information obtained from each port, and a processing unit configured to specify, based on the device information, a port in which an abnormal device exists, invalidate device information belonging to the port, and cause the storage unit to hold device information of a normal device.

Abstract: A method and circuit for implementing an enhanced availability personality card for a chassis computer system, and a design structure on which the subject circuit resides are provided. The personality card includes a first erasable programmable read only memory (EPROM) and a second EPROM, each EPROM storing Vital Product Data (VPD) and a first temperature sensor and a second temperature sensor sensing temperature. A primary bidirectional bus and a redundant bidirectional bus are respectively connected between the first EPROM and the first temperature sensor and the second EPROM and the second temperature sensor, and a pair of chassis management modules. Each chassis management module includes a switch connected to both the primary bidirectional bus and the redundant bidirectional bus providing redundant paths, enabling continued function with failure of any critical personality card component.

Abstract: To address shortcomings in the prior art, the invention uses fate sharing information to compute backup paths. Fate sharing information relates groups of nodes or links according to common characteristics, attributes, or shared resources (e.g., a shared power supply, close proximity, same physical link). In one embodiment, fate-sharing information includes costs associated with groups of nodes or links. When a primary path contains a link or node that is in a fate-sharing group, the other links or nodes in the fate-sharing group are assigned the cost associated with that fate-sharing group. The node computing the backup path takes into account the assigned cost together with other node and link costs. Discovering the existence of the relationships and assigning costs to the groups may be done manually or automatically.

Abstract: An information handling system includes a plurality of storage enclosures, a plurality of logical storage units located in each storage enclosure, a controller connected to each of the plurality of logical storage units. The controller is configured to receive data regarding the plurality of logical storage units, and automatically execute an algorithm based on the received logical storage unit data to generate a mirrored storage configuration to be implemented, the mirrored storage configuration defining mirrored pairs of the plurality of logical storage units.

Abstract: A method, article of manufacture, and apparatus for preserving changes made to data during a recovery process. In some embodiments, this includes recovering a backup data to a remote location, using an I/O intercept to access the recovered data, modifying the recovered data a first time, completing the modification of the recovered data, preserving the I/O intercept, and storing the modified data in the remote location.

Abstract: A device enables a disabled timer state for a link aggregation group (LAG) link if a disabled timer condition is determined for the LAG link, and enables a disabled state for the LAG link if a disabled condition is determined for the LAG link in the disabled timer state.

Abstract: An automated method for provisioning a grid used to run a load test on a target website includes sending one or more requests in a multi-threaded manner to at least one cloud provider, the one or more requests for an allocation of N load server instances and M result server instances which comprise the grid. Requests received back from the cloud provider are also handled in a multi-threaded manner; any errors occurring during the allocation being corrected automatically. The N load server instances and the M result server instances are then verified to be operational and correctly running software deployed to provide defined test services. Errors identified during the verification are automatically corrected either by attempting to restart a failed instance or allocating a different instance.

Abstract: An optical ring network has one or more working wavelengths and multiple protection wavelengths adapted to support the working wavelength(s). Routing tables may be used in network nodes to assign traffic of a failed working wavelength to a protection wavelength. The protection technique may be applied to networks employing, for example, Dense Wave Division Multiplexing (DWDM).

Abstract: A data processing apparatus has a plurality of storage elements residing at different physical locations within the apparatus, and fault history circuitry for detecting local transient faults occurring in each storage element, and for maintaining global transient fault history data based on the detected local transient faults. Analysis circuitry monitors the global transient fault history data to determine, based on predetermined criteria, whether the global transient fault history data is indicative of random transient faults occurring within the data processing apparatus, or is indicative of a coordinated transient fault attack. The analysis circuitry is then configured to initiate a countermeasure action on determination of a coordinated transient fault attack.

Abstract: The present solution provides increases in automation, scalability and efficiency for delivering technical support services to devices. Systems and methods of the present solution provide a hierarchy or layers of automated desktop services with remote technical support services, which may be automated. The present solution provides an on desktop automation support system that detects and automatically remediates problems on a device of the user. If the problem is not fixed or fixable via local automated remediation at the desktop, a centralized service may remotely deliver technical support services to the device in the form of automated support services delivered to the device or remote technical agents connecting remotely with the device. With the combination of local support automation, remote support automation, remote and onsite technicians, the centralized service may deliver a hierarchy or multi-layers of services to any device.