6077results about "Fault response" patented technology

A portable data terminal generally includes a housing supporting: a data collection device; a keypad; and a touch screen. One or more PDTs are provided with a monitoring system that records occurrences experienced by the portable data terminal. The record of occurrences may be analyzed to identify errors and / or failure prone parts of the PDT along with behaviors likely to lead to errors or failures. Additionally, the record of events may be analyzed to predict errors and / or failures for any given PDT.

The present invention is directed to a method and information handling system (IHS) for improving system performance in a storage area network. An embodiment of the present invention begins by obtaining diagnostic data for the storage area network by asking a user one or more questions and storing results to the one or more questions. Next, test data is obtained by running one or more testing modules on at least one component of the storage area network. A performance analysis of the storage area network is executed, including the obtained diagnostic data and the obtained test data. Then, one or more performance issues and one or more action plans for resolution are identified based upon the analysis. Finally, a report to one or more users is provided including the one or more identified performance issues and the one or more action plans.

A proactive, resilient and self-tuning memory management system and method that result in actual and perceived performance improvements in memory management, by loading and maintaining data that is likely to be needed into memory, before the data is actually needed. The system includes mechanisms directed towards historical memory usage monitoring, memory usage analysis, refreshing memory with highly-valued (e.g., highly utilized) pages, I / O pre-fetching efficiency, and aggressive disk management. Based on the memory usage information, pages are prioritized with relative values, and mechanisms work to pre-fetch and / or maintain the more valuable pages in memory. Pages are pre-fetched and maintained in a prioritized standby page set that includes a number of subsets, by which more valuable pages remain in memory over less valuable pages. Valuable data that is paged out may be automatically brought back, in a resilient manner. Benefits include significantly reducing or even eliminating disk I / O due to memory page faults.

A management server is provided in a computer system having one or more hosts, one or more storage systems and one or more switches, the hosts having a plurality of virtual machines, each virtual machine being defined according to a service level agreement. The management server is operable to manage the virtual machines and resources associated with the virtual machines; receive a notification of an event from a node in the computer system; determine if the event affects a service level agreement for any of the virtual machines defined in the computer system, the service level agreements listing required attributes for the corresponding virtual machines; allocate a new resource for a virtual machine whose service level agreement is affected by the event; and move the virtual machine whose service level agreement is affected by the event to the newly allocated resource.

In the case of detection of failure on a direct link interconnecting Master and Backup upstream switches, a control module of the Master upstream switch sends a partial failure message representing the occurrence of partial failure in the Master upstream switch via any of multiple lines connected to multiple ports of the Master upstream switch to the Backup upstream switch. Upon reception of the partial failure message from the Master upstream switch, a control module of the Backup upstream switch identifies partial failure occurring in the Master upstream switch and keeps the Backup operating status of the Backup upstream switch. Upon no reception of the partial failure message from the Master upstream switch, on the other hand, the control module of the Backup upstream switch identifies total failure occurring in the Master upstream switch and switches over the operating status of the Backup upstream switch from Backup to Master. In the event of failure occurring in the Master upstream switch, this arrangement effectively prevents unintentional interruption of data communication but ensures normal data communication in a network without causing the double-master state and the control loop in the network.

A system and method for tracking user patterns, getting debug information from retail devices in use, and gathering data automatically into a central location where it is processed automatically. Information pertaining to the state of the system at the time a failure occurred on a mobile device is accessible by a developer in a disconnected mode. In addition, usage patterns are ascertainable from the data gathered.

Some embodiments provide a virtualizer for managing a plurality of managed switching elements that forward data through a network. The virtualizer comprises a first set of tables for storing input logical forwarding plane data and a second set of tables for storing output physical control plane data. It also includes a table mapping engine for mapping the input logical forwarding plane data in the first set of tables to output physical control plane data in the second set of tables by performing a set of database join operations on the input logical forwarding plane data in the first set of tables. In some embodiments, the physical control plane data is subsequently translated into physical forwarding behaviors that direct the forwarding of data by the managed switching elements.