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| Number | Title | Issue Date |
| 7984328 | System and method for reducing unrecoverable media errors A method for operating a computer data storage system is described. A recoverable error in a data storage device in recognized in response to receiving a command for a write operation. It is determined whether the data storage system is in a degraded state. The writ... | 07/19/2011 |
| 7962782 | Modifying connection records Systems and methods to modify a set of connection records are described. A determination is made that an application failed to access a first database via a connection record, where the connection record includes data to access the first database. A determination is... | 06/14/2011 |
| 7962783 | Preventing write corruption in a raid array A method and related computer program product of preventing write corruption in a redundant array in a computer system, comprising detecting a write failure from a calling application to at least one disk of the redundant array, writing failure information to non-vo... | 06/14/2011 |
| 7949896 | Device for control of switching of storage system A storage system includes a controller that controls switching from a system before switching to a system after switching. The controller includes a check unit that checks whether a connection between the system before switching and the system after switching is ena... | 05/24/2011 |
| 7941697 | Failure handling using overlay objects on a file system using object based storage devices A system and method for data storage in an array. A system includes a client coupled to a storage subsystem including data storage locations addressable as rows and columns in an array. Each column comprises a separate storage device. Each row includes redundant dat... | 05/10/2011 |
| 7941403 | Embedded file system recovery techniques Various Embedded File System recovery techniques are described. A mobile computing device may comprise a radio, a processor coupled to the radio, and a memory coupled to the processor. The memory may be arranged to store a file system manager module (FSMM) that when... | 05/10/2011 |
| 7930587 | System and method for storage takeover A system and method for performing a takeover procedure is disclosed. A plurality of storage system nodes is coupled in a cluster. One or more of the plurality of storage system nodes in the cluster is notified to takeover at least a portion of a writable storage de... | 04/19/2011 |
| 7925920 | Fault tolerant routing in a non-hot-standby configuration of a network routing system Methods and systems for facilitating fault tolerance in a non-hot-standby configuration of a network routing system are provided. According to one embodiment, a failover method is provided. A fault manager executing on a control blade of multiple server blades of a ... | 04/12/2011 |
| 7917804 | Systems and methods for CPU repair Systems and methods for repairing a processor are provided. In one embodiment, a method for repairing a processor is provided that includes, for example, the steps of initializing and executing an operating system, determining that a cache element is faulty, and swa... | 03/29/2011 |
| 7908511 | File replacement in shared file system A method for replacing a first root file system comprising, retrieving a second root file system, mounting the second root file system on a first system in a sysplex as the sysplex root file system, replacing sysplex root mount information associated with the first ... | 03/15/2011 |
| 7895467 | Storage control system and storage control method Unique information including a logical type name is stored in a user data area of a management area as a media of the alternative disk drive to become an alternative of the storage device. Upon using the alternative disk drive, a disk controller reads the unique inf... | 02/22/2011 |
| 7886186 | Storage system and management method for the same In a storage system performing remote copy, when a failure occurs in a storage apparatus, optimum redundancy configuration is reestablished promptly. In the storage system performing remote copy, when a storage apparatus detects a failure in its disk drive, a storag... | 02/08/2011 |
| 7886185 | Creation of a device database and synthesis of device driver information during dissimilar system restore Systems, methods, and computer-readable memory media for performing various computer configuration tasks are disclosed. One such configuration task is dissimilar system restore (DSR). Another such task is software deployment. In various embodiments, these configurat... | 02/08/2011 |
| 7873866 | Computer system, storage system and configuration management method Maintenance storage system by storage system is enabled, and the removal or replacement of a storage system is enabled while continuing the operation of a system. In a computer system including a first storage system having a plurality of first storage device... | 01/18/2011 |
| 7823010 | Anomaly notification control in disk array In a storage device incorporating a plurality of kinds of disk drives with different interfaces, the controller performs sparing on a disk drive, whose errors that occur during accesses exceed a predetermined number, by swapping it with a spare disk drive that is pr... | 10/26/2010 |
| 7805633 | Optimized reconstruction and copyback methodology for a disconnected drive in the presence of a global hot spare disk The present invention is a system for optimizing the reconstruction and copyback of data contained on a failed disk in a multi-disk mass storage system. A system in accordance with the present invention may comprise the following: a processing unit requiring ... | 09/28/2010 |
| 7802132 | Technique to improve and extend endurance and reliability of multi-level memory cells in a memory device A novel technique to improve and extend endurance and reliability of a memory device utilizing multi-level cells is disclosed. As a memory device ages, it's reliability deteriorates. Prior to the memory device becoming completely unreliable, the memory device transi... | 09/21/2010 |
| 7797572 | Computer system management method, management server, computer system, and program This invention provides a method of controlling switching of computers according to a cause of failure without preparing one standby node for each active node. For n active nodes (200), m standby nodes (300) of different characteristics (in terms of CP... | 09/14/2010 |
| 7788528 | Repair module for memory, repair device using the same and method thereof A repair module for repairing one of n bit lines through m bit bus in a memory, a repair device using the same, and a method thereof are provided herein, wherein m≧n. In the repair method, a switching control signal and a selecting control signal are generated acc... | 08/31/2010 |
| 7783918 | Data protection method of storage device A data protection method of a storage device is provided. In the method, a system management interrupt program orders a hardware control unit to obtain a type and an address message of an error in a block in a first storage device, and stores the type and address me... | 08/24/2010 |
| 7779296 | Storing data replicas remotely Storing data is disclosed. All base data is copied from a first storage device to a master set on a second storage device. A request is received to write data to a specified location on the first storage device. An indication is stored in a list that the data at the... | 08/17/2010 |
| 7770059 | Failure protection in an environment including virtualization of networked storage resources An architecture for protecting against failure in a switched storage network using virtualization. ... | 08/03/2010 |
| 7761737 | Apparatus, method, and computer product for executing program An operating computer or a standby computer can execute a program. The operating computer includes a first storage unit and the standby computer includes a second storage unit. Access to the first storage unit is frozen. Only minimum data required for the standby co... | 07/20/2010 |
| 7761738 | Establishing communications across virtual enclosure boundaries A high density storage enclosure houses first and second pluralities of hard disk drives (HDDs). The enclosure may be partitioned into a plurality of virtual enclosures, the first plurality of HDDs being associated with a first virtual enclosure and the second plura... | 07/20/2010 |
| 7752490 | Memory system having a hot-swap function A memory system includes normal memory modules serially connected, and a backup memory module, and a switch circuit for replacing a failed one of the normal memory modules by the backup memory module. The switch circuit inserts the backup memory module in the serial... | 07/06/2010 |
| 7743276 | Sufficient free space for redundancy recovery within a distributed data-storage system Embodiments of the present invention are directed to methods, and distributed data-storage systems employing the methods, for recovering redundancy within a distributed data-storage system upon failure of one or more mass-storage devices within a component data-stor... | 06/22/2010 |
| 7739543 | System and method for transport-level failover for loosely coupled iSCSI target devices A system and method for clustered failover of storage appliances is provided. In the event of a failover of one storage appliance to a surviving storage appliance, the surviving storage appliance assumes the identity of the failed storage appliance. This assumption ... | 06/15/2010 |
| 7739544 | Disk array system and rebuild method thereof Disclosed is a disk array system which includes a plurality of disks constituting a disk array and a backup storage for backing up data in the disk array and performs control so that when a failed disk among the disks constituting the disk array is replaced with the... | 06/15/2010 |
| 7694174 | Systems and methods for CPU repair Systems and methods for repairing a processor are provided. In one embodiment, a method for repairing a processor is provided that includes, for example, the steps of initializing and executing an operating system, determining that a cache element is faulty, and swa... | 04/06/2010 |
| 7685463 | Disk drive management system A disk drive management system includes a data storage device including an array of disk drives and a host computer for controlling the operation of the data storage device. The array of disk drives includes an operational drive pool including a number of online dis... | 03/23/2010 |
| 7661020 | System and method for reducing unrecoverable media errors A data storage system has a network adapter to receive an I/O request. A status signal is generated in response to the I/O request, the status signal indicating a failure of a storage media to which the I/O request was directed. An operating system determines, in re... | 02/09/2010 |
| 7653832 | Storage array virtualization using a storage block mapping protocol client and server A cached disk array includes a disk storage array, a global cache memory, disk directors coupling the cache memory to the disk storage array, and front-end directors for linking host computers to the cache memory. The front-end directors service storage access reque... | 01/26/2010 |
| 7644304 | Using SAS address zoning to add/replace hot spares to RAID set Certain ones of a plurality of SAS hard disk drives are assigned to different SAS zones using a SAS zoning expander(s). A processor and SAS RAID controller have access to only those SAS hard disk drives assigned to the same zone(s) as the processor and SAS RAID cont... | 01/05/2010 |
| 7636867 | Memory system with hot swapping function and method for replacing defective memory module A serial-transmission type memory system with a hot swapping function is provided which is capable of replacing a defective memory module without stopping the system. One end of a row of memory modules is connected to one input-output section of a memory controller ... | 12/22/2009 |
| 7631219 | Method and computer program product for marking errors in BIOS on a RAID controller A method and related computer program product of preventing write corruption in a redundant array in a computer system, comprising detecting a write failure from a calling application to at least one disk of the redundant array, writing failure information to non-vo... | 12/08/2009 |
| 7627777 | Fault tolerance scheme for distributed hyperlink database Fault tolerance is provided for a database of hyperlinks distributed across multiple machines, such as a scalable hyperlink store. The fault tolerance enables the distributed database to continue operating, with brief interruptions, even when some of the machines in... | 12/01/2009 |
| 7624300 | Managing storage stability Storage stability is managed. It is detected that a disk drive is requesting to be taken offline. The disk drive is begun to be treated as being in a probation state. If within an acceptable period of time the disk drive requests to be put back online, treatment of ... | 11/24/2009 |
| 7607038 | Systems and methods for CPU repair In one embodiment, a method for repairing a faulty cache element is provided. Once a monitored cache element is determined to be faulty, the system stores the repair information, and cache configuration in an EEPROM or non-volatile memory on the CPU module. Then the... | 10/20/2009 |
| 7603583 | Fault recovery method in a system having a plurality of storage system System availability is improved in a second storage system, connected to a first storage system, and having means for virtualizing devices within the first storage system as its own devices. When the virtual storage system or a storage management server detects a fa... | 10/13/2009 |
| 7603582 | Systems and methods for CPU repair In one embodiment, a cache element allocation method is provided. Each cache element on a CPU is assigned a quality rank based on the error rate of the cache element. If an allocated cache element is deemed to be faulty, the quality rank of the faulty allocated cach... | 10/13/2009 |
