Matches 101 - 150 out of 173 < 1 2 3 4 >


Match Document Document Title
7058848 Controller-based remote copy system with logical unit grouping  
A data replication system having a redundant configuration including dual Fiber Channel fabric links interconnecting each of the components of two data storage sites, wherein each site comprises a...
7010718 Method and system for supporting network system troubleshooting  
The system for supporting network troubleshooting of the invention includes: storage means for periodically storing setting/configuration data and performance data of devices constituting the...
6990602 Method for diagnosing hardware configuration in a clustered system  
The method of the present invention is useful in a computer system including at least two server nodes, each of which can execute clustered server software. The program executes a method for...
6981170 Control method of storage control apparatus and storage control apparatus  
A control method is disclosed for a storage control apparatus having a plurality of channel control units connected to communicate with each other and which receives a data input or data output...
6928576 Backup gateway apparatus and home network system  
A backup gateway apparatus is provided in a home network, connected parallel to a gateway apparatus. The backup gateway apparatus detects when the gateway apparatus is malfunctioning. During the...
6922792 Fault tolerance for computer programs that operate over a communication network  
Mechanisms for a Networked Enterprise Server that provide fault tolerance for computer programs that interact with computer programs within and between enterprises over a communication network,...
6918052 Managing operations of a computer system having a plurality of partitions  
The inventive multiple partition computer system allows the reconfiguration of the installed hardware, possibly while the various partitions continue normal operations. This aspect includes adding...
6910149 Multi-device link aggregation  
The invention relates to multi-device link aggregation (MDLA). A first MDLA device is connected to a second MDLA device by an MDLA internal link. Each of the interconnected first and second MDLA...
6898728 System domain targeted, configurable interconnection  
A method and apparatus for reconfiguring a computing system on a system domain-by-system domain basis are disclosed. In one aspect of the present invention, the apparatus is a computing system...
6892317 Systems and methods for failure prediction, diagnosis and remediation using data acquisition and feedback for a distributed electronic system  
By using monitoring data, feedback data, and pooling of failure data from a plurality of electronic devices, real-time failure prediction and diagnoses of electronic systems operating in a network...
6877107 Method for ensuring operation during node failures and network partitions in a clustered message passing server  
A means for guaranteeing the proper behavior as specified by the JMS semantics of clustered message server when the individual computer that comprise the cluster are separated by a network...
6845475 Method and apparatus for error detection  
Automatic detection or correction of addresses, such as Uniform Resource Locators, that are user-entered may be provided. A code that is associated with an address may be entered when an address...
6826708 Method and system for logging debugging information for communication connections  
A method and system for logging debugging information for a communication connection includes receiving a user initiated signal indicating a problem with a communication connection. In response to...
6807543 Data access component providing transparent access to a plurality of medical imaging databases  
A technique is provided for accessing data stored in separate databases. A communication system having a first and second computer system is used to retrieve data from a primary or a secondary...
6792555 Access server fault isolation without service disruption method and apparatus  
The invention is a fault isolation method and apparatus for use in a network access server. The method includes allocating one or more modems in a group of modems associated with an access server...
6789122 Mechanism for reliable update of virtual disk device mappings without corrupting data  
A cluster implements a virtual disk system that provides each node of the cluster access to each storage device of the cluster. The virtual disk system provides high availability such that a...
6785834 Method and system for automating product support  
According to the teachings of the present invention there are provided a system and method for automatically supporting one or more registered products at a computing device, the computing device...
6772363 Fast failover database tier in a multi-tier transaction processing system  
Methods of processing transactions in a multi-tier network of at least one database client and a plurality of database servers including a primary and a backup database server are described. One...
6754843 IP backbone network reliability and performance analysis method and apparatus  
This invention provides a tool for reliability evaluation and performance analysis of an IP backbone network by using the network packet loss ratio as the main measurement. A queuing model and...
6748557 System, method, and program for determining the availability of interfaces to a control unit  
Disclosed is a system, method, and program for analyzing proposed interface ports to a device. For each proposed interface port, a determination is made of a number of single points of failure for...
6721899 Fault-tolerant non-flooding routing  
This invention is an algorithm that restores routing in a link-state network after a link failure without flooding the entire routing area with new routing information. The algorithm operates only...
6687847 Failure detector with consensus protocol  
New failure detector mechanisms particularly suitable for use in asynchronous distributed computing systems in which processes may crash and recover, and two crash-recovery consensus mechanisms,...
6675316 Method and system for recovery of the state of a failed CPU/cache/memory node in a distributed shared memory system  
A method of (and system for) recovering the state of a failed node in a distributed shared memory system, includes directing a flush of data from a failed node, and flushing the data from the...
6671821 Byzantine fault tolerance  
A new approach for asynchronous state-machine replication in a fault-tolerant system offers both integrity and high availability in the presence of Byzantine faults. The approach also improves the...
6665822 Field availability monitoring  
An networking system is disclosed in accordance with an embodiment of the present invention to include a field availability monitoring system (FAMS) for receiving problems associated with one or...
6658585 Method and system for simple network management protocol status tracking  
A user contracts for service with an operations center (12) in order to provide monitoring and tracking services for a plurality of devices (30). After contracting for service, the operations...
6658586 Method and system for device status tracking  
A user contracts for service with an operations center (12) in order to provide monitoring and tracking services for a plurality of devices (30). After contracting for service, the operations...
6651183 Technique for referencing failure information representative of multiple related failures in a distributed computing environment  
In a distributed computing environment having a plurality of processing nodes, a technique is presented for referencing failure information representative of multiple related failures. A first...
6636983 Method and system for uniform resource locator status tracking  
A user contracts for service with an operations center (12) in order to provide monitoring and tracking services for a plurality of devices (30). After contracting for service, the operations...
6601184 System crash network access  
The present invention provides a debug-time network environment that enables access to a computer system that has crashed where communication over regular network channels is halted. The...
6550016 Protection bus and method for a telecommunications device  
A telecommunications device includes a protection bus, at least one protected card, and an I/O module for the protected card. The I/O module is coupled to the protected card and the protection bus...
6539494 Internet server session backup apparatus  
A computer system for a web site uses three tiers of servers, web (or HTTP) servers, application servers, and backup servers. The backup servers are responsible for backing up the session data for...
6530032 Network fault recovery method and apparatus  
The present invention provides layer one, two and three (L1/L2/L3) Integration and L1 cut-through path utilization in an apparatus and method of fault recovery. A switch combines an IP router with...
6523130 Storage system having error detection and recovery  
A massively scalable architecture for providing a self-monitoring and self-correcting storage system that is capable of handling hundreds of millions of users and tens of billions of files. The...
6516424 System for providing reliable and effective disaster relief  
When communication networks are damaged or communication is restricted due to the occurrence of a disaster, etc., information required for disaster relief is rapidly and effectively obtained. The...
6496940 Multiple processor system with standby sparing  
A multiprocessor system includes a number of sub-processor systems, each substantially identically constructed, and each comprising a central processing unit (CPU), and at least one I/O device,...
6490690 Method and apparatus for unix system catastrophic recovery aid  
Initially, a configuration script is stored either remotely or locally on a system. The configuration script is executed based on a set of predefined execution parameters, such as time based...
6430699 Apparatus and methods for inband protocol correction in distributed object networking  
Apparatus and methods for correcting protocol errors in computer networking software. More particularly, an apparatus and methods are provided for correcting a class of protocol errors that is...
6330686 Handling protected conversation messages across IMS restart in shared queues environment  
During phase one of each protected conversation transaction, one or more messages are inserted. These messages are logged for recoverability. IMS system could crash before phase two of commit....
6308282 Apparatus and methods for providing fault tolerance of networks and network interface cards  
Methods and apparatus for implementation of fault-tolerant networks provide a network fault-tolerance manager for detecting failures and manipulating a node to communicate with an active channel....
6247141 Protocol for providing replicated servers in a client-server system  
A fault-tolerant client-server system has a primary server, a backup server; and a client. The client sends a request to the primary server, which receives and processes the request, including...
6173411 Method and system for fault-tolerant network connection switchover  
A computer is connected to redundant network switches by primary and secondary connections, respectively. Test messages are sent across each connection to the attached switches. A break in a...
6154728 Apparatus, method and system for distributed and automatic inventory, status and database creation and control for remote communication sites  
An apparatus, method and system are provided for automatic and distributed inventory processing for remote communication sites, such as remote cellular sites. A system embodiment includes a...
6154849 Method and apparatus for resource dependency relaxation  
A method and apparatus that allows flexibility in failure diagnosis, so that a single failure event received by a failure analysis system can affect the availability of different resources in...
6134671 System and method for dynamically generating restoration routes within a communications network  
A system and method is disclosed for dynamically restoring communications within a network following an outage comprising a database containing the configuration of switching elements within the...
6122754 Method and system for data recovery using a distributed and scalable data structure  
Disclosed is a system for recovering data objects stored in a data bucket in a computer system comprised of servers interconnected by a network. Each server includes a storage area. Data buckets...
6018805 Transparent recovery of distributed-objects using intelligent proxies  
A distributed-object software application is capable of recovering from a server crash. The recovery is transparent to the client objects because the client objects do not have to be re-started or...
5991893 Virtually reliable shared memory  
The inventive computer system uses a layer of software between the operating system and the hardware that localizes the fail-safe protocols into a single module. The system also uses shared memory...
5933590 Restoration of multiple span cuts with priority hand-off using SHN  
A system and method for restoring communications in a network having multiple span failures. After a failure is detected, a sender node in each of the plurality of sender-chooser pairs sends a...
5884017 Method and system for optical restoration tributary switching in a fiber network  
A method and system for restoration of a fiber communication network through optical tributary switching. Multi-port optical cross-switches switch traffic at the tributary side of lightwave...

Matches 101 - 150 out of 173 < 1 2 3 4 >