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| Number | Title | Issue Date |
| 8185779 | Controlling computer storage systems Goal-based availability and change management are handled over groups of heterogeneous storage controllers. Probabilistic and deterministic methods are employed to determine the allocation and placement of storage volumes to storage controllers, as well as the degre... | 05/22/2012 |
| 8176363 | Efficient method and apparatus for keeping track of in flight data in a dual node storage controller A storage unit adapted for use in a processing system includes a controller including at least two compute nodes, each of the compute nodes including a read/write cache and a persistent cache; and machine executable instructions stored within machine readable media,... | 05/08/2012 |
| 8135985 | High availability support for virtual machines A computer implemented method, a tangible computer storage medium, and a data processing system provide high availability support for virtual machines in a logical partitioned platform. A monitoring system detect a failure in the virtual machine. Partition managemen... | 03/13/2012 |
| 8127174 | Method and apparatus for performing transparent in-memory checkpointing A method and apparatus for performing transparent checkpoint data backup by identifying portions of memory that store the checkpoint data that have been modified since a prior in-memory checkpoint process and backing up only the identified portions of memory contain... | 02/28/2012 |
| 8122289 | Load balancing and high availability of compute resources Compute resources of multiple resource cards are assigned to compute resource pools. Each compute resource pool is typically associated with a specific service (e.g., VoIP, video service, deep packet inspection, etc). Compute resource groups are created in each comp... | 02/21/2012 |
| 8112659 | Reducing recovery time for business organizations in case of disasters An aspect of the present invention reduces the recovery time for business organizations in case of disasters. In one embodiment, a disaster recovery system containing a primary site and a backup site (implemented as a cluster) is maintained. Application instances ar... | 02/07/2012 |
| 8108719 | Information processing device and failure concealing method therefor An information processing device comprises a plurality of processing units on which OSs and execution environments operate, and shared peripheral devices shared by the plurality of processing units. The information processing device is provided with a failure concea... | 01/31/2012 |
| 8103906 | System and method for providing total real-time redundancy for a plurality of client-server systems An automated and scalable system for total real-time redundancy of a plurality of client-server systems, wherein, data is replicated through a network connection and operationally located on a virtual machine that substitutes for a failed client-server system, where... | 01/24/2012 |
| 8086898 | Redundant I/O module A redundant I/O module includes: a control I/O module that communicates with a controller and that comprises a first IOM setting information holding section for storing IOM setting information downloaded from a high-level apparatus, and a standby I/O module that com... | 12/27/2011 |
| 8078907 | Failsoft system for multiple CPU system A cpu-set type multiprocessor system allows a cpu of a cpu-set that has a hardware exception to disable itself and notify the system. The system assigns processes of the cpu-set that include the problem cpu to another cpu-set. The disabling of the problem cpu and tr... | 12/13/2011 |
| 8074099 | Failure recovery method, failure recovery program and management server In a computer system including server apparatuses such as an active server and a standby server connected to a storage apparatus, when the active server fails, a management server changes over connection to the storage apparatus from the active server to standby ser... | 12/06/2011 |
| 8074111 | System and method for responding to failure of a hardware locus at a communication installation A method for responding to a failure of hardware locus of at a communication installation having a plurality of control apparatuses for controlling a plurality of processes distributed among a plurality of hardware loci, the hardware loci including at least one spar... | 12/06/2011 |
| 8069368 | Failover method through disk takeover and computer system having failover function When a primary server executing a task fails in a computer system where a plurality of servers are connected to an external disk device via a network and the servers boot an operation system from the external disk device, task processing is taken over from the prima... | 11/29/2011 |
| 8069366 | Global write-log device for managing write logs of nodes of a cluster storage system A cluster system comprises a plurality of nodes that provides data-access service to a shared storage, each node having at least one failover partner node for taking over services of a node if the node fails. Each node may produce write logs for the shared storage a... | 11/29/2011 |
| 8060779 | Using virtual copies in a failover and failback environment Provided are a method, system, and article of manufacture for using virtual copies in a failover and failback environment. Updates are copied from a primary first storage at the primary site to a secondary first storage at the secondary site during system operations... | 11/15/2011 |
| 8051326 | System and method for completeness of TCP data in TCP HA System and method for completeness of transmission control protocol (TCP) high availability (HA) are disclosed. The system includes an active processor, having an application and a TCP, and a standby processor, having another application and another TCP; wherein com... | 11/01/2011 |
| 8051322 | Redundant failover system, redundancy managing apparatus and application processing apparatus In a communication system using an IP tunnel for communication between application processing apparatuses (hereinafter, processing apparatuses), an application can be moved to an arbitrary processing apparatus, update of tunnel tables included in the respective proc... | 11/01/2011 |
| 8032786 | Information-processing equipment and system therefor with switching control for switchover operation In cases where the system which performs service provision includes plural kinds of OS, the plural kinds of OS are operated simultaneously on one standby server provided with the virtual control unit. When a failure etc. occurred in the operation system server neces... | 10/04/2011 |
| 8028193 | Failover of blade servers in a data center Failover of blade servers in a data center including powering off a failing blade server by a system management server through a blade server management module (‘BSMM’) managing the failing blade server, the failing blade server characterized by a machine type, ... | 09/27/2011 |
| 8028192 | Method and system for rapid failback of a computer system in a disaster recovery environment A method, system and computer-readable medium for providing rapid failback of a computer system is described. The method, which operates during failback of a secondary computer to a primary computer, accesses a map to determine a location of a latest version of data... | 09/27/2011 |
| 8024605 | To server processes A method for maintaining the ability of a parent server process to communicate with one or more client processes is disclosed. In the method, a first child server process is configured to monitor for failure of the parent server process and to respond to failure of ... | 09/20/2011 |
| 8006130 | Methods and systems for generating availability management framework (AMF) configurations Techniques for generating a system model for use by and availability management framework (AMF) are described. Inputs are received, processed and mapped into outputs which are further processed into a configuration file in an Information Model Management (IMM) Servi... | 08/23/2011 |
| 8006124 | Large-scale cluster monitoring system, and method of automatically building/restoring the same Provided are a large-scale cluster monitoring system and a method for automatically building/restoring the same, which can automatically build a large-scale monitoring system and can automatically build a monitoring environment when a failure occurs in nodes. The la... | 08/23/2011 |
| 8006131 | Activating correct ad-splicer profile in ad-splicer redundancy framework In particular embodiments, method and system for detecting a failure of a primary ad-splicer, conveying a failure information for the failed primary ad-splicer to a redundant ad-splicer, dynamically forwarding one or more pre-spliced packets intended for the failed ... | 08/23/2011 |
| 8001418 | Fault detection and correction for single and multiple media players connected to electronic displays, and related devices, methods and systems Systems, devices, software, hardware and networks adapted and arranged for monitoring and correcting faults in networked media player systems that include electronic displays are provided. After detection or notification of a fault in at least one networked media pl... | 08/16/2011 |
| 7996715 | Multi nodal computer system and method for handling check stops in the multi nodal computer system A new multi nodal computer system comprising a number of nodes on which chips of different types reside. The new multi nodal computer system is characterized in that there is one clock chip per node, each clock chip controlling only the chips residing on that node s... | 08/09/2011 |
| 7987386 | Checkpoint/resume/restart safe methods in a data processing system to establish, to restore and to release shared memory regions A method is provided in which checkpointing operations are carried out in data processing systems running multiple processes which employ shared memory in a manner which preserves data coherence and integrity but which places no timing restrictions or constraints wh... | 07/26/2011 |
| 7975174 | Failover system and method One aspect of the present invention provides a system for failover comprising at least one client selectively connectable to one of at least two interconnected servers via a network connection. In a normal state, one of the servers is designated a primary server whe... | 07/05/2011 |
| 7971094 | Method, system and apparatus for creating and executing a failover plan on a computer network A failover module generates a user interface to enable an administrative user to define a failover plan for a primary site. The failover plan includes user-specified information for use by multiple operations of a failover process for failing over a server system fr... | 06/28/2011 |
| 7945812 | System and method for error correction A hard disk controller includes a direct access module. The direct access module is configured to receive a data stream from a host, the data stream including a plurality of data words to be transferred to a storage device, generate data integrity information based ... | 05/17/2011 |
| 7941699 | Determining a set of processor cores to boot Techniques that determine a strict subset of multiple processor cores from a set of multiple functional processor cores integrated within a single integrated circuit package. The determined strict subset of multiple processor cores differs from a previously determin... | 05/10/2011 |
| 7937616 | Cluster availability management A first logical partition in a first processing complex of a server cluster is operated in an active mode and a second logical partition in the processing complex is operated in a standby mode. Upon detection of a failure in a second processing complex of the server... | 05/03/2011 |
| 7937617 | Automatic clusterwide fail-back Systems and procedures may be used to coordinate the fail-back of multiple hosts in environments where the hosts share one or more data-storage resources. In one implementation, a procedure for coordinating fail-backs includes monitoring a failed data path to detect... | 05/03/2011 |
| 7925923 | Migrating a virtual machine in response to failure of an instruction to execute A virtual machine is migrated from a first physical machine to a second physical machine in response to a failure of an instruction to execute. A migration constraint also is created which limits future migration of the virtual machine by a placement controller to o... | 04/12/2011 |
| 7882391 | Computer system, changeover-to-backup-system method, changeover-to-backup-system program, monitoring device, terminal device and backup system To aim at autonomously selecting and switching over a management system by a terminal device, and preventing the terminal device from switching over the system, managing the self-terminal, to a backup system even in the case of a temporary fault from which to recove... | 02/01/2011 |
| 7877628 | Mirroring data between primary and secondary sites Provided are a method, system, and article of manufacture for mirroring data between a first site and a second site. Updates to segments of storage at the first site are copied to corresponding segments of storage at the second site. Codes are generated from the seg... | 01/25/2011 |
| 7870425 | De-centralized nodal failover handling Embodiments of the present invention provide a method, system and computer program product for de-centralized nodal failover handling in a high availability computing architecture. The system can include multiple different nodes coupled to one another in a cluster o... | 01/11/2011 |
| 7853826 | Operating system transfer and launch without performing post A device operating method includes saving initial state information of an electronic device. Next, transferring control of the electronic device to a principal operating system. After transferring control and upon receiving an operating system shut down indication s... | 12/14/2010 |
| 7849360 | Computer system and method of controlling communication port to prevent computer contamination by virus or malicious code The invention may back up or recover a computing device. The computing device may include a user computing environment and a supporting environment which stabilizes and functionality of the user computing environment. The invention may include one or more external d... | 12/07/2010 |
| 7840839 | Storage handling for fault tolerance in virtual machines A fault-tolerant virtualized computer system comprises a primary host executing a primary virtual machine (VM) and a backup host executing a backup VM. In one embodiment, each VM includes a virtual disk mapped to a shared disk image on physical disk accessible to bo... | 11/23/2010 |
