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| Number | Title | Issue Date |
| 8099624 | Recovery mechanism for I/O module using out-of-band control path A storage system includes a storage server and a storage subsystem having an I/O module coupled to disks. The storage server includes a storage adapter coupled to the I/O module creating an in-band (data) path to access data stored on the disks. The storage server s... | 01/17/2012 |
| 7958391 | Storage system and control method of storage system A fault-tolerant storage system is provided. The storage system is composed of a controller having a plurality of processors and other units. When an error occurs in any one of the components in the controller, the storage system cuts off an I/O path of the controll... | 06/07/2011 |
| 7925921 | Fault recovery in concurrent queue management systems A method for fault tolerance and fault recovery in multiprocessor systems that concurrently manage queues is disclosed. The illustrative embodiment comprises a plurality of servers, a queue of jobs to be assigned to the servers, and two queue managers—a primary un... | 04/12/2011 |
| 7913112 | Storage controller and storage control method This storage controller includes a port unit and multiple processing units for inputting and outputting data to and from a storage apparatus. The port unit sorts the data I/O requests given from a host system to the corresponding processing units according to a tabl... | 03/22/2011 |
| 7908513 | Method for controlling failover processing for a first channel controller and a second channel controller A method of installing software on a storage device controlling apparatus which includes at least one channel controller having a circuit board on which are formed a file access processing section receiving requests to input and output data in files as units from an... | 03/15/2011 |
| 7873867 | Power saving method in NAS and computer system using the method Provided is a computer system which includes plurality of computers including a first, second, and third computers, and a storage device coupled to the plurality of computers via a network, in which: the first computer is configured to: access data in a storage area... | 01/18/2011 |
| 7844854 | Opportunistic transmission of computing system state information within a link based computing system A method is described that involves within a link based computing system, opportunistically transmitting, into a network utilized by components of the link based computing system, one or more packets that contain computing system state information. The computing sys... | 11/30/2010 |
| 7827441 | Disk-less quorum device for a clustered storage system A disk-less quorum device in a clustered storage system includes non-volatile memory to store status information regarding the cluster and each storage controller in the cluster. The quorum device maintains a bitmap, shared by the controllers in the cluster, in the ... | 11/02/2010 |
| 7818613 | Arrangement and method for connecting a processing node in a distribution system An arrangement and method for interconnecting fail-uncontrolled processor nodes in a dependable distributed system. A node has a bus guardian with input switches which act in combination with a logic element as an input multiplexer under the control of a control uni... | 10/19/2010 |
| 7809981 | Storage system and control method of storage system Provided is a storage system superior in fault tolerance. This storage system is composed of a controller having a plurality of processors and other units. When an error occurs in any one of the components in the controller, the storage system cuts off an I/O path o... | 10/05/2010 |
| 7788529 | Method for safely interrupting blocked work in a server A method for safely interrupting blocked work in a server including: creating a registry; registering a potential blocking event in the registry; executing the potential blocking event; determining that the potential blocking event is not responding; accessing a reg... | 08/31/2010 |
| 7788530 | Storage server configuration despite an out-of-service storage adapter In one version of the present invention, a system to configure a storage server despite an out-of-service storage adapter includes a storage array and a pair of storage servers connected to the storage array via a corresponding pair of storage adapters. The storage ... | 08/31/2010 |
| 7774644 | System and program for error handling in a dual adaptor system where one adaptor is a master Provided is a method, system, and program for processing Input/Output (I/O) requests to a storage network including at least one storage device and at least two adaptors, wherein each adaptor is capable of communicating I/O requests to the at least one storage devic... | 08/10/2010 |
| 7770061 | Fault recovery in concurrent queue management systems A method for fault tolerance and fault recovery in multiprocessor systems that concurrently manage queues is disclosed. The illustrative embodiment comprises a plurality of servers, a queue of jobs to be assigned to the servers, and two queue managers—a primary un... | 08/03/2010 |
| 7673172 | Method, system, and program for error handling in a dual adaptor system where one adaptor is a master Provided is a method, system, and program for processing Input/Output (I/O) requests to a storage network including at least one storage device and at least two adaptors, wherein each adaptor is capable of communicating I/O requests to the at least one storage devic... | 03/02/2010 |
| 7669078 | Method and apparatus for debugging a program on a limited resource processor The present invention provides for an apparatus employed to debug a program operating in a supplemental processor when the processor's registers are not readable directly by the debugging operation of a main processor. A program operating in main memory halts due to... | 02/23/2010 |
| 7661022 | System for error handling in a dual adaptor system where one adaptor is a master Provided is a system for processing Input/Output (I/O) requests to a storage network including at least one storage device and at least two adaptors, wherein each adaptor is capable of communicating I/O requests to the at least one storage device. An error is detect... | 02/09/2010 |
| 7624301 | Method and apparatus for identifying failure module A failure-data register unit receives failure data from a failure detecting module. Based on the failure data, a test-execution instructing unit instructs each module to execute access tests for the module accessed when the failure detecting module detected the fail... | 11/24/2009 |
| 7519854 | Internal failover path for SAS disk drive enclosure A serial SCSI (SAS) storage drive system includes a drive enclosure having a first interface card coupled to one storage controller over a single SAS path and a second interface card coupled to another storage controller over a different single SAS path. At least on... | 04/14/2009 |
| 7490264 | Method for error handling in a dual adaptor system where one adaptor is a master Provided is a method for processing Input/Output (I/O) requests to a storage network including at least one storage device and at least two adaptors, wherein each adaptor is capable of communicating I/O requests to the at least one storage device. An error is detect... | 02/10/2009 |
| 7487389 | Method for achieving higher availability of computer PCI adapters PCI (Peripheral Component Interconnect) adapters capable of dynamically switching between being controlled by a system processor and a specialized input/output processor (IOP), are utilized. A method of fault recovery in such a system involves switching those PCI ad... | 02/03/2009 |
| 7437604 | Network storage appliance with integrated redundant servers and storage controllers A network storage appliance includes a chassis, enclosing a storage controller and first and second servers. The storage controller has first and second I/O ports for coupling to first and second I/O links. The storage controller controls a plurality of physical dis... | 10/14/2008 |
| 7418624 | Hot standby system Consistency of a shared disk is secured in system switching in a hot standby system. In the standby system in which an active computer and standby computer share the shared disk, when a write I/O request is issued from the active computer, information about a start ... | 08/26/2008 |
| 7415634 | Method for fast system recovery via degraded reboot A system and method for fast system recovery that bypasses diagnostic routines by disconnecting failed hardware from the system before rebooting. Failed hardware and hardware that will be affected by removal of the failed hardware of the system are disconnected from... | 08/19/2008 |
| 7401252 | Apparatus and method to convert data from a first sector format to a second sector format An apparatus is disclosed to convert data from a first sector format to a second sector format. The sector format conversion device includes a processor, and microcode which causes the processor to overlay (N) first sectors having a first sector format onto (M) seco... | 07/15/2008 |
| 7401254 | Apparatus and method for a server deterministically killing a redundant server integrated within the same network storage appliance chassis An apparatus for deterministically killing one of redundant servers integrated into a network storage appliance chassis along with at least one storage controller is disclosed. Each server can generate a kill signal on a backplane of the chassis to the other server ... | 07/15/2008 |
| 7386760 | Method, system, and program for error handling in a dual adaptor system where one adaptor is a master Provided is a method, system, and program for processing Input/Output (I/O) requests to a storage network including at least one storage device and at least two adaptors, wherein each adaptor is capable of communicating I/O requests to the at least one storage devic... | 06/10/2008 |
| 7380163 | Apparatus and method for deterministically performing active-active failover of redundant servers in response to a heartbeat link failure An apparatus is disclosed for deterministically performing active-active failover of redundant servers in response to a failure of a link on which each server provides a heartbeat to the other server. Each of the servers is configured to take over the identity of th... | 05/27/2008 |
| 7370147 | Disk array device and control method therefor A disk array device having a dual controller for executing data input/output processing for disk drives in response to a data input/output request from a host computer. Each controller constituting the dual controller has an FC controller which is interface-connecte... | 05/06/2008 |
| 7370229 | Storage system and setting method for storage configuration information Pairs are formed from a plurality of dispersed volumes and copying between the volumes is conducted by a series of remote operations from a management server. A management server 10 instructs the generation of configuration setting files 23, 30 to host... | 05/06/2008 |
| 7366920 | System and method for selective memory module power management A memory module includes a memory hub that monitors utilization of the memory module and directs devices of the memory module to a reduced power state when the module is not being used at a desired level. System utilization of the memory module is monitored by track... | 04/29/2008 |
| 7359339 | Smart access point The present invention provides a “smart” AP, whereby the AP periodically checks its connection with a network and, if a determination is made that the connection between the AP and the network server has been lost, an indication of this loss of connection is mad... | 04/15/2008 |
| 7353434 | Method for controlling storage system A storage system including: channel control portions each including a circuit board on which a file access processing portion for receiving file-by-file data input/output requests sent from information processors through a network and an I/O processor for outputting... | 04/01/2008 |
| 7350109 | System and method for testing a memory using DMA A computer system that includes a processor, a first bus coupled to the processor, a memory controller coupled to the first bus, a memory coupled to the memory controller, a first input/output (I/O) controller coupled to the first bus, and a test module coupled to t... | 03/25/2008 |
| 7343521 | Method and apparatus to preserve trace data A method, apparatus, and computer instructions for processing trace data in a logical partitioned data processing system. A partition causing an exception is identified in response to detecting the exception. The partition is one within a set of partitions in the lo... | 03/11/2008 |
| 7343436 | Synchronous electronic control system and system control method The present invention is carried out to provide a system controller, a control system and a system control method which are inexpensive, highly stable, capable of storing all information and past record at a time when one of the devices is down and capable of switch... | 03/11/2008 |
| 7343514 | Data copying system, relaying device, data transfer/reception system and program for copying of data in storage unit A relaying device for relaying data transferred from first storage unit to a second storage unit, is provided outside a range presumed to be affected by a disaster, when a disaster, such as an earthquake, has broken out in an installation site of a host of a normal ... | 03/11/2008 |
| 7337355 | Method, system, and program for error handling in a dual adaptor system where one adaptor is a master Provided is a method, system, and program for processing Input/Output (I/O) requests to a storage network including at least one storage device and at least two adaptors, wherein each adaptor is capable of communicating I/O requests to the at least one storage devic... | 02/26/2008 |
| 7334120 | Firmware emulation environment for developing, debugging, and testing firmware components including option ROMs A method and apparatus to execute a pre-boot application within an emulated pre-boot environment to test functionality of the pre-boot application. The emulated pre-boot environment is executed within a user mode of an operating system (“OS”) during an OS runtim... | 02/19/2008 |
| 7330999 | Network storage appliance with integrated redundant servers and storage controllers A network storage appliance integrates a plurality of servers and a plurality of storage controllers into a single chassis. The storage controllers control transfers of data between the servers and storage devices controlled by the storage controllers. The servers a... | 02/12/2008 |
