106results about "Error detection/correction" patented technology

The invention relates generally to archiving data items in an information store. More particularly, the invention provides a computerized method for identifying, in a first information store, a first data item satisfying retention criteria; copying the first data item to a second information store; creating, in the first information store, a second data item containing a subset of the data of the first data item selected based on the data type of the first data item; and replacing the first data item, in the first information store, with the second data item.

A method, information processing system, and computer program storage product for managing disk failures in a disk array. At least one disk in a first disk array is determined to have failed. The first disk array only accesses data by reading an entire stripe that is distributed across multiple disks in the first disk array. A number of spare disks are selected that is equal to a number of disks making up the first disk. A second disk array is created from the number of disks that has been selected. Data is acquired from the first disk array by reading at least one entire stripe from the first disk array. A corresponding stripe comprising the data from each respective stripe that has been acquired is written to the second disk array.

Systems and methods enabling search of a repository for the location of data that is similar to input data, using a defined measure of similarity, in a time that is independent of the size of the repository and linear in a size of the input data, and a space that is proportional to a small fraction of the size of the repository. Additionally, remote operations are accomplished with significantly reduced system bandwidth by implementing remote differencing operations.

This invention is a system and method for managing replication of data in a data storage environment by grouping logical devices. The system is enabled for configuring, monitoring, and controlling replication processes in accordance with a replication policy that is particularly useful when combined with grouping of logical devices used in replication. The invention is useful for replicating essentially an entire copy of a production-level database such that the copy may be used essentially as the production-level database itself.

A system and method of exposing debugging information in a graphical modeling and execution environment is disclosed. The present invention allows a user to view debugging information in the same window as the graphical view of the model being executed. Debugging data is associated with relevant components of the model displayed in the graphical view. A separate execution list view shows the methods called during the execution of the block diagram in the current time step up until the current point in execution. User-set breakpoints and conditional breakpoints may be set in both the model view and the execution list view. Values may be obtained for all of the displayed methods. The debugging tool may be implemented by using it in conjunction with a graphical modeling and execution environment, such as a block diagram environment or state diagram environment.

A network management application provides notification of events on network devices using prepopulated notification rules. The notification rule is prepopulated by the network management application using conditions that represent the present state of the device being monitored. An associated notification action is executed when an event on a network device satisfies the conditions of the prepopulated notification rule. The notification action can be tested without actually creating a set of conditions for a device that satisfies the conditions of the notification rule.

The present invention provides systems and methods for data storage. A hierarchical storage management architecture is presented to facilitate data management. The disclosed system provides methods for evaluating the state of stored data relative to enterprise needs by using weighted parameters that may be user defined. Also disclosed are systems and methods evaluating costing and risk management associated with stored data.

Various embodiments of the present invention provide systems and methods for data processing. For example, a variable iteration data processing system is disclosed that includes a first detector, a second detector, a decoder and a unified memory buffer. An input data set is received by the first detector that performs a data detection and provides a first detected data set. The decoder receives a derivative of the first detected data set and performs a decoding operation that yields a decoded data set. In some cases, the derivative of the first detected data set is an interleaved version of the first detected data set. The decoded data set is written to a unified memory buffer. The first decoded data set is retrievable from the unified memory buffer and a derivative thereof is provided to the second detector. In some cases, the derivative of the decoded is a de-interleaved version of the decoded data set. The second detector is operable to perform a data detection on the derivative of the decoded data set and to provide a second detected data set that is written to the unified memory buffer.

A system and method for multivolume file system backup without suspending activity of user application programs uses a file system snapshot of two and more partitions or volumes of the storage device, or two and more data storages, significantly increasing computer system availability and allows backing up two and more partitions of the storage device without interrupting computer services. Backup procedure is performed online, simultaneously creates snapshots of two and more partitions of the storage device or storage devices in the pre-selected point of time and copies data blocks from partitions into the backup storage device, optionally through the intermediate storage device. When a write command is directed to a data storage block identified for backup that has not yet been backed up, the identified data storage block is copied from the storage device to the intermediate storage device, the write command is executed on the identified data storage block from the storage device, and the data storage block is copied from the intermediate storage device to the backup storage device.

A management system for managing a plurality of computers and a plurality of pieces of software in a computer center includes: a selection data storage part for storing data regarding allocation destination selection, the data including at least either one of operation data and temperature data, wherein the operation data represent states of execution of the pieces of software by the computers, respectively, and temperature data represent temperature distribution in the computers; an instruction generation part for extracting an overheated computer that is assumed to emit more heat as compared with the other computers, and a less-heated computer that is assumed to emit less heat as compared with the other computers, by using the data regarding allocation destination selection, and generating an instruction for relocating at least a part of a piece of software allocated to the overheated computer to the less-heated computer; and an instruction part for outputting the instruction. This makes it possible to save energy for cooling the computers.

An execution management method includes providing an execution plan, balancing an execution load across a plurality of servers, automatically interpreting the execution plan, and re-driving a failed test to another of the plurality of servers if the test case fails on an originally selected available server. The execution plan includes a plurality of test cases and criteria corresponding to the test cases. More than one of the plurality of test cases may be run on each of the plurality of servers at a same time in parallel. Each of the plurality of servers is run independently.

An apparatus and method are disclosed for variable authentication requirements. The apparatus includes an operating status module identifying a change in an operating status of a device and maintaining a history of operating statuses, and an access control module comparing a current operating status with a previous operating status. The apparatus also includes a profile module maintaining a trust indicator for each operating status. The access control module determines a level of authentication required to unlock the device in response to the trust indicator associated with the current operating status. The method includes identifying a change in an operating status of a device and maintaining a history of operating statuses, and comparing a current operating status with a previous operating status. The method also includes maintaining a trust indicator for each operating status, and determining a level of authentication required to unlock the device in response to the trust indicator associated with the current operating status.

A method of operation of a storage control system includes: determining a bit error rate of a page; calculating a slope based on the bit error rate; and adjusting a threshold voltage for the page based on the slope for reading a memory device.

A method for monitoring according to a hint when allocating a storage volume. When a threshold value violation has occurred, judgement is performed from which use purpose the threshold value derives. The management computer for managing a computer system includes a unit for creating a storage volume according to a hint, a unit for deciding a threshold value for managing the storage volume according to the use purpose of the storage volume, a unit for acquiring a performance value from the storage apparatus, and a unit for comparing the acquired performance value to the threshold value and notifying a warning including a message based on the hint when a threshold value violation is detected.

The present invention automates the operation of multiple malware removal software products using a computerized system that systematically operates the multiple selected software products. These products are operated them in a customized “Safe Mode” using a shell that is different than the computer's other shell environments. Unlike the ordinary Safe Modes shells, the Custom Safe Mode prevents malware from functioning that ties itself to the normal shell, such as the Windows Explorer shell. In addition, the Custom Safe Mode allows the automation of tasks beyond that which is available under the standard command line shell.

Methods, apparatus, and systems for characterizing vulnerabilities of an application source code are disclosed. Steps for characterizing vulnerabilities include traversing a representation of the application source code, generating a signature of a potential vulnerability of the application source code, and determining characteristics of the potential vulnerability based on a correlation between the generated signature of the potential vulnerability and previously stored signatures of potential vulnerabilities.

A storage device comprising has a storage medium, a read-write mechanism, an object-based file system interface, and a controller. The read-write mechanism is adapted to read and to write data from and to the storage medium. The object-based file system interface within the storage device is adapted to organize and access data on the storage medium as objects and to access attributes of each data object. The controller is adapted to generate redundancy data for each data object to be stored on the storage medium according to the associated attributes and to store the data object and its associated redundancy data on the storage medium.

An apparatus, system, and method are disclosed for improved tracking of software item defects. The approach involves maintaining defect attributes for a particular software bug. Certain attributes are user-defined while others are derived. Attributes may be, for example, questions, requests for action, requests for approval, or others. The primary attributes and derived attributes for the bug are associated with users that are associated with the software bug, and a determination is made as to whether or not action is required by the individual users for the software bug using the attributes. If action is required, the user is alerted that action is required for the software bug. The actions and/or bugs may be presented to the user using an inbox format. The inbox may sort actions based on priority, what type of attribute is relevant to the user, or using other categorizations.

A distributed LSR sends data from a first edge LSR, across a non-MPLS network, to a second edge LSR, thereby enabling a non-MPLS network to interface transparently with MPLS networks. This enables a VPN to use a public network to communicate from one portion of the network to another, remote portion. The distributed LSR includes an ingress gateway logically positioned between the first edge LSR and the non-MPLS network. This ingress gateway receives label requests from the first edge LSR. These label requests are multicast to several egress gateways. At least one egress gateway sends a message back indicating that it can transmit data to the destination. In response, the ingress gateway designates that egress gateway to be a designated gateway. The egress gateway then establishes a tunnel through the non-MPLS network to the ingress gateway.

The present invention provides a software development method, system and computer program product. Generally, a computer program product for software development assistance includes a computer readable storage medium having computer readable program code embodied therewith such that the computer readable program receives from a server over a computer communications network both a software update for software installed in an end user device, and also test cases and a testing tool. The test cases are loaded in memory of the end user device and executed in the end user device with the execution tool with respect to the software update. Execution information produced by the execution of the test cases is collected and transmitted back to the server from the end user device. Optionally, a new test case for the software update can be created within the memory of the end user device the new test case can be executed along with the received test cases with the execution tool in the end user device. Consequently, the new test case can be transmitted to the server along with the collected execution information.

A monitoring process for a NUMA system collects data from multiple monitored threads executing in different nodes of the system. The monitoring process executes on different processors in different nodes. The monitoring process intelligently collects data from monitored threads according to the node it which it is executing to reduce the proportion of inter-node data accesses. Preferably, the monitoring process has the capability to specify a node to which it should be dispatched next to the dispatcher, and traverses the nodes while collecting data from threads associated with the node in which the monitor is currently executing. By intelligently associating the data collection with the node of the monitoring process, the frequency of inter-node data accesses for purposes of collecting data by the monitoring process is reduced, increasing execution efficiency.

A BPEL program simulator can include a document object modeler configured to arrange activities defined by a BPEL document into a document object model (DOM) tree. The DOM tree can include activity nodes and links between the activity nodes. The BPEL program simulator further can include simulation logic configured to process the activity nodes to emulate at least one BPEL activity selected from the group consisting of Sequence, Flow, While, Pick and OnMessage, Switch and Case, Invoke, Script, Receive, Reply, Empty, Staff, and Assign.

A passive optical network (PON) including an optical line termination (OLT) and a plurality of optical network units (ONUs) which are connected. The optical line termination includes a band setting control section; an upstream control cell receiving section; a use right transmitting section; and a downstream control cell transmitting section. Each of the plurality of optical network units includes a downstream control cell receiving section; a use right acquisition determining section; and an upstream control cell transmitting section.