Class / Patent application number | Description | Number of patent applications / Date published |
714500100 | Of peripheral subsystem | 70 |
20110022887 | VIRTUAL COMPUTER SYSTEM AND CONTROL METHOD THEREOF - When a failure occurs in an LPAR on a physical computer under an SAN environment, a destination LPAR is set in another physical computer to enable migrating of the LPAR and setting change of a security function on the RAID apparatus side is not necessary. When a failure occurs in an LPAR generated on a physical computer under an SAN environment, configuration information including a unique ID (WWN) of the LPAR where the failure occurs is read, a destination LPAR is generated on another physical computer, and the read configuration information of the LPAR is set to the destination LPAR, thereby enabling migrating of the LPAR when the failure occurs, under the control of a management server. | 01-27-2011 |
20110078491 | CONTROL SYSTEM, CONTROL COMPUTER AND METHOD FOR OPERATING A CONTROL SYSTEM - A particularly simple and simultaneously fail-safe control system has a control computer for interchanging data with at least one peripheral, and at least one further control computer connected to the first-mentioned control computer via a communication channel. The further control computer is configured to assume at least part of the functionality of the control computer. The control computer is designed, in the event of partial failure thereof, to forward data received by the further control computer via the communication channel to the peripheral and/or to forward data received by the peripheral to the further control computer via the communication channel. There is also provided such a control computer and a method for operating a control system. | 03-31-2011 |
20110099415 | CEC COMMUNICATIONS DEVICE, AUDIO AND VISUAL DEVICE USING THEREOF, AND CEC COMMUNICATIONS METHOD - The present invention provides a CEC communications device which eliminates a troublesome process to solve the CEC-related communication malfunction when the CEC communications device detects a CEC-related communication malfunction caused by a software malfunction and improves serviceability of the CEC communications by automatically resetting the CEC to execute a CEC communication recovery. In the CEC communications device, when a CEC communications line monitoring unit detects a CEC-related communication malfunction caused by a software malfunction, a CEC control unit determines a reset order of a CEC appliance found on a CEC network, and notifies the CEC resetting unit of a CEC resetting request. The CEC resetting unit resets the CEC of a CEC appliance found on the CEC network via an HDMI line (DDC in FIG. | 04-28-2011 |
20110099416 | Efficient Architecture for Interfacing Redundant Devices to a Distributed Control System - A system and method for interfacing redundant devices to a distributed control system, includes a first and second redundant field bus modules communicably coupled to the distributed control system and to one another via switches. A pair of redundant field devices are coupled to the switches, one FD having an address. The FBMs adopt respective roles as master FBM and tracker FBM, so that the master FBM is configured to capture data from the one FD using the address, and to pass any data changes periodically to the tracker FBM, through the switches. The master FBM is configured to point to the other field device in the event the other field device has assumed the address. The FBMs are configured to switch roles in the event communication is disrupted between the master FBM and the FD having the address. | 04-28-2011 |
20110138220 | METHODS AND APPARATUS TO INITIATE A BIOS RECOVERY - Methods and apparatus to initiate a basic input/output system (BIOS) recovery are disclosed herein. An example BIOS recovery module includes a memory storing one or more signatures to be detected by a detector of a BIOS implemented on a computing platform; and a connector to couple the module to a data display channel of the computing platform, wherein a BIOS recovery mechanism of the BIOS is to initiate in response to the detector detecting the one or more signatures of the module via the data display channel. | 06-09-2011 |
20110154101 | INFRASTRUCTURE FOR RAPID SERVICE DEPLOYMENT - A controller is used to provide a sharable, programmable and composable infrastructure. The controller includes a user manager to take input of user application programming interface calls that correspond to actions accepted from users. A physical manager fulfills requests from the user manager by manipulating distributed physical resources and logical devices in a network controlled by the controller. A configuration effector implements configuration changes to the physical resources and logical devices. A device monitor determines a status of the physical resources and logical devices, propagates the status to the physical manager for detecting a failure of the physical resources and logical devices in real-time, and mitigates the failure. | 06-23-2011 |
20110191627 | System And Method for Handling a Failover Event - A system comprising a memory storing a set of instructions executable by a processor. The instructions being operable to monitor progress of an application executing in a first operating system (OS) instance, the progress occurring on data stored within a shared memory area, detect a failover event in the application and copy, upon the detection of the failover event, the data from the shared memory area to a fail memory area of a second instance of the OS, the fail memory area being an area of memory mapped for receiving data from another instance of the OS only if the application executing on the another instance experiences a failover event. | 08-04-2011 |
20110239040 | Parallel Multiplex Storage Systems - A method for controlling a system includes receiving an indication that an operation has failed in a secondary storage device, suspending data operations sent to the secondary data storage device from a primary storage device, determining a failure policy set by a user, and initiating a first policy responsive to determining that the first policy is active, the first policy including sending a status query to the secondary storage device, determining whether a response has been received from the secondary storage device, determining whether the response indicates a failure of the secondary storage device responsive to determining that the response has been received from the secondary storage device, and continuing processing tasks on the server and data operations on the primary storage device responsive to determining that the response indicates a failure of the secondary storage device. | 09-29-2011 |
20110258485 | TRANSITIONAL REPLACEMENT OF OPERATIONS PERFORMED BY A CENTRAL HUB - A central hub is coupled to a plurality of computational devices. The central hub stores a data structure that grants locks for accessing common data stored at the central hub, wherein the common data is shared by the plurality of computational devices. Each computational device maintains locally those locks that are held by the computational device in the data structure stored at the central hub. In response to a failure of the data structure stored at the central hub, a selected computational device of the plurality of computational devices is determined to be a manager system. Other computational devices besides the manager system communicate to the manager system all locks held by the other computational devices in the data structure stored at the central hub. The data structure and the common data are generated and stored at the manager system. Transactions are performed with respect to the data structure stored at the manager system, until the data structure stored at the central hub is operational. | 10-20-2011 |
20110289347 | RECOVERY FROM MEDIUM ERROR ON TAPE ON WHICH DATA AND METADATA ARE TO BE STORED BY USING MEDIUM TO MEDIUM DATA COPY - A copy export application implemented in a computational device receives a request to perform a copy export operation of data and metadata to a selected tape in a tape library coupled to the computational device. The copy export application copies the data from the computational device to the selected tape. The copy export application determines a medium error on the selected tape while copying the metadata from the computational device to the selected tape, subsequent to completion of the copying of the data from the computational device to the selected tape. The copy export application sends a request to a tape control application to replace the selected tape by a new tape and copy the data from the selected tape to the new tape. The copy export application copies the metadata to the new tape. | 11-24-2011 |
20110307735 | METHOD, COMPUTER, AND COMPUTER PROGRAM PRODUCT FOR HARDWARE MAPPING - A method is provided for mapping a data center to a disaster recovery site. Data center information including production hardware and production applications is retrieved from a database. Disaster recovery site information including disaster recovery hardware is retrieved from the database. A list is created of the production applications and a valid list of the production applications is automatically determined from the list based on rules in the database. A list is created of the production hardware, and a valid list of the production hardware is automatically determined from the list based on the rules in the database, which includes determining the production hardware on which the valid list of the production applications run, and removing the production hardware on which the valid list of the production applications does not run. The valid list of the production hardware is mapped to the disaster recovery hardware of the disaster recovery site. | 12-15-2011 |
20110320860 | MANAGING PROCESSING ASSOCIATED WITH HARDWARE EVENTS - Detection, notification and/or processing of events, such as errors associated with adapters, are facilitated. Hardware detects an event, places one or more adapters in an error state to prevent access to/from the adapters, and notifies the operating system of the event. | 12-29-2011 |
20120066545 | FAULT-TOLERANT SYSTEM AND FAULT-TOLERANT CONTROL METHOD - A fault-tolerant system including a plurality of modules each further including a CPU subsystem, a fault-tolerant control unit, and an I/O subsystem, wherein the fault-tolerant control unit includes a master FT control LSI chip and at least one slave FT control LSI chip. One module is placed in an active state whilst the other module is placed in a standby state, so that I/O requests made by CPU subsystems of these modules are selectively delivered to I/O subsystems based on the master/slave relationship. Upon receiving fault information representing a failed subsystem which is either the CPU subsystem or the I/O subsystem found in the module, the master FT control LSI chip sends a command for controlling isolation of the failed subsystem to the slave FT control LSI chip, so that the slave FT control LSI chip controls isolation of the failed subsystem based on the command. | 03-15-2012 |
20120079312 | METHOD AND SYSTEM OF LIVE ERROR RECOVERY - A method and system of error recovery of a device attached to a platform without requiring a system reset. In one embodiment of the invention, a platform detects an error(s) of an attached device and shuts down the communication link with the attached device. The platform corrects the error(s) and automatically re-trains the communication link with the attached device. In this way, no reset of the platform is required to correct the detected error(s) in one embodiment of the invention. | 03-29-2012 |
20120089864 | STORAGE DEVICE, AND DATA PATH FAILOVER METHOD OF INTERNAL NETWORK OF STORAGE CONTROLLER - A storage device in which the MR-IOV is applied to an internal network of a storage controller. Data path failover can be executed in the storage device. The internal network of the storage controller is configured to enable the access of a virtual function (VF) “VF 0:0, 1” of each endpoint device (ED | 04-12-2012 |
20120096305 | Method and System for Recovery of a Computing Environment - A method and system for recovery of a computing environment includes monitoring during a pre-boot phase and a runtime phase of a computing device for selection of a hot key sequence by a user and performing a recovery action in response to the selection of the hot key sequence by the user. The recovery action may be any one of a number of predetermined and/or selectable actions such as restoring system defaults, migrating memory, displaying a menu of options, setting various software flags, restarting or rebooting the computing device, and/or the like. | 04-19-2012 |
20120137166 | STORAGE SYSTEM USING SAS STANDARD BACK-END COMMUNICATION - Each of SAS expanders (“expander(s)” hereinafter) has a switch device for switching whether to bypass the expander in each communication path or not. Of the plurality of switch devices, an actual connection destination of a switch device bypassing the expander is a switch device in a upper-level and/or a lower-level of the switch device. Of the plurality of switch devices, an actual connection destination of a switch device that does not bypass an expander is the expander. | 05-31-2012 |
20120159237 | System and Method of Emergency Operation of an Alarm System - An ambient condition monitoring system includes a common control unit, at least one primary communications bus and at least one supplemental communications bus. The control unit communicates with a plurality of supplemental units, which could include ambient condition detectors, using the primary communications bus in a normal operating environment. In the event of a sensed failure of the primary bus, or one of the supplemental units, communications can be automatically implemented using the supplemental communications bus. | 06-21-2012 |
20120185723 | EFTB UNIT, USB DEVICE WITH THE EFTB UNIT AND METHOD FOR RESETTING AND REENUMERATING THE USB DEVICE - A method for resetting and reenumerating a Universal Serial Bus (USB) device, an Electrical Fast Transient/Burst (EFTB) unit of a USB device for resetting and reenumerating the USB device and a USB device are described. In one embodiment, a method for resetting and reenumerating a USB device involves detecting a USB reset command from a host device at a USB device, setting a reset flag in the USB device in response to the detecting of the USB reset command, determining if the USB device is in a corrupted state in response to the reset flag, and causing a Single Ended Zero (SE0) signal to be issued to reset the USB device out of the corrupted state and reenumerate the USB device back to the host device if the USB device is determined to be in the corrupted state. Other embodiments are also described. | 07-19-2012 |
20130024721 | CONTROL COMPUTER SYSTEM, METHOD FOR CONTROLLING A CONTROL COMPUTER SYSTEM, AND USE OF A CONTROL COMPUTER SYSTEM - A control computer system comprising at least two modules ( | 01-24-2013 |
20130036325 | PLUG-IN CARD STORAGE DEVICE AND CONTROL METHOD THEREOF - A plug-in card storage device includes a plug-in card including a memory to store received input data and an error correction circuit to be equipped electrically connectable to the memory and to correct an error in the input data outputted from the memory; a device main body to have the plug-in card implemented therein; and a processor to determine whether or not to activate the error correction circuit, by calculating a reliability index value of the plug-in card based on an error rate of the memory provided in the plug-in card implemented in the device main body, so as to approximate the reliability index value to a reference value. | 02-07-2013 |
20130151886 | COMPUTING DEVICE AND METHOD FOR SWITCHING PHYSICAL LINKS OF A SAS EXPANDER OF THE COMPUTING DEVICE - A method switches physical links of a serial attached small computer system interface (SAS) expander of a computing device. If a physical link of the SAS expander is malfunctioning, configuration parameters of the malfunctioned physical link are stored to a storage system of the computing device, and a reserved physical link corresponding to the malfunctioned physical link is selected from firmware of the SAS expander. The method further modifies configuration parameters of the malfunction physical link, produces a new firmware according to the modified configuration parameters and the selected reserved physical link, and switches the malfunctioned physical link to the reserved physical link by writing the new firmware to the SAS expander. | 06-13-2013 |
20130151887 | PERIPHERAL INTERFACE ALERT MESSAGE FOR DOWNSTREAM DEVICE - According to some embodiments, a message generated by a downstream device is received at upstream device. The message may, for example, be received via a peripheral interface and may not require a response. It may then be determined that an error is associated with the message, and an alert message may be sent from the upstream device to the downstream device via the peripheral interface. | 06-13-2013 |
20130159764 | PCI Express Error Handling and Recovery Action Controls - An apparatus and method of PCIe error handling and recovery actions taken in the event of an error. An error reporting extension defines a set of commonly used actions that are taken by a device in response to the detection of an error. This minimizes the side effects of continued device operation following the occurrence of an error. The device's error handling capabilities are advertised and the system software specifies the desired device action to take upon occurrence of a particular error. The particular error handling action is defined uniquely for each PCIe function and error type, such that different errors trigger a different type of action, thereby affecting only specific device functions or the entire device, depending on the configuration. Error handling actions and control fields are placed in the extension portion of the PCI Express Advanced Error Reporting configuration space. | 06-20-2013 |
20130205164 | COMPUTER SYSTEM AND MANAGEMENT METHOD THEREOF - The present invention makes it possible to dynamically and optimally change QoS while taking the balance of a system as a whole into consideration. With the present invention, communications parameters comprising band allocation information with respect to a plurality of interfaces of communications paths are set at a management device, and a host device, a switch device, and a storage device communicate based on the communications parameters that have been set. Then, in the system operation stage, the management device or the switch device acquires statistical information comprising band usage amounts with respect to the communications paths among a port of the host device, a port of the storage device, and a port, of the switch device, changes, based on the statistical information, the band allocation that has been set with respect to the plurality of interfaces, and, further, determines whether or not the band allocation as changed is appropriate with respect to the system (see FIG. | 08-08-2013 |
20130262918 | Proxy Responder for Handling Anomalies in a Hardware System - An apparatus for handling anomalies in a hardware system including a master device and at least one slave device coupled with the master device through an interconnect device is provided. The apparatus includes at least one controller operative to receive status information relating to the slave device. The status information is indicative of whether an anomaly is present in the slave device and/or the interconnect device. The controller is operative to generate output response information as a function of the status information relating to the slave device for detecting and/or responding to hardware system anomalies in a manner which reduces a need for resetting the hardware system to return to normal operation. | 10-03-2013 |
20130346791 | SAS STORAGE DRIVE INFORMATION - A SAS storage enclosure to provide storage drive information that includes an expander and a storage manager. The expander supports communication between initiators and associated zoned storage drives of the storage enclosure, and the storage drive information table is to store extended storage drive status information of storage drives of the storage enclosure. The storage manager is to store to the storage drive information table extended storage drive status information of storage drives of the storage enclosure in response to receipt from an initiator a SAS command to store the information, in the event that the storage manager receives from an initiator a command to exchange data with a zoned storage drive and then a storage drive failure occurs with the zoned storage drive. The storage manager sends to the initiator the information in response to receipt from an initiator a SAS command to retrieve the information. | 12-26-2013 |
20140365813 | WATCHDOGABLE REGISTER-BASED I/O - An apparatus comprising a data storage device to store a plurality of register tracking values, each of the plurality of register tracking values to indicate a last successful Input/Output (I/O) port check, an initialization module to reset a first register tracking value in the data storage device upon receipt of an initialization signal from an I/O refresh subsystem corresponding to the first register tracking value and a failure detection module to identify a second register tracking value in the data storage device that has a value indicating an expired register tracking value. | 12-11-2014 |
20140365814 | IO Pad Circuitry with Safety Monitoring and Control for Integrated Circuits - An input/output (IO) pad circuitry for integrated circuits (ICs) that is equipped with safety monitoring and control circuits to ensure that signals provided to/from the IO pad behave correctly. The IO pad circuitry allows monitoring of the IO pad signals, the detection of an undesired behavior, e.g., a wrong signal level or a wrong waveform. Furthermore, depending on a selected safety mode, a correction of the IO pad signals by overriding the monitored signal is further achieved. When in full safe mode, signals are provided as required, while in a partial safe mode only certain signals are provided depending on the status. A grouped safe mode allows providing a safe status to a group of IO pads using a single control. A monitoring circuitry between a plurality of input signals to an IC pad is also provided. | 12-11-2014 |
20140372791 | INTERFACE CONTROL CIRCUIT, MEMORY SYSTEM, AND METHOD OF CONTROLLING AN INTERFACE CONTROL CIRCUIT - Disclosed is an interface control circuit including an error detection unit, an error correction unit, and an adjustment control unit. The error detection unit is configured to detect whether an error occurs in error correction coded data transmitted via an interface. The error correction unit is configured to execute error correction processing of correcting the error when the error occurs. The adjustment control unit is configured to start adjustment processing of adjusting a transmission characteristic of the interface when the error occurs. | 12-18-2014 |
20150012774 | INFORMATION PROCESSING APPARATUS AND METHOD FOR CONTROLLING INFORMATION PROCESSING APPARATUS - An information processing apparatus includes a reception unit configured to receive data using a plurality of lanes, a degeneration control unit configured, when a failure occurs in one of the lanes, to degenerate a predetermined number of lanes including a lane in which the failure has occurred and to cause the reception unit to receive the data using remaining lanes except for the predetermined number of the degenerated lanes among the lanes, a retraining unit configured to perform retraining to establish links in the predetermined number of the degenerated lanes, and a return control unit configured, when the links are established in the predetermined number of lanes degenerated by the retraining with the retraining unit, to cause the reception unit to receive the data using the predetermined number of the degenerated lanes and the remaining lanes. | 01-08-2015 |
20150019903 | ISOLATING A PCI HOST BRIDGE IN RESPONSE TO AN ERROR EVENT - Instead of disabling PCI communication between system resources in a host computing device and I/O devices when a PCI Host Bridge (PHB) is unable to function, the host computing device may include a redundant PCI communication path for maintaining communication between the system resources and the I/O devices after a first PHB experiences an unrecoverable error. In one embodiment, the redundant PCI communication path includes a second PHB that is maintained in a standby state so long as the first PHB is functioning normally. However, once the first PHB experiences an unrecoverable error, the second PHB is changed to the master state and assumes the responsibility for maintaining communication between the system resources and the I/O devices. | 01-15-2015 |
20150046746 | METHOD FOR ENSURING REMEDIATION OF HUNG MULTIPLEXER BUS CHANNELS - Technologies are described herein for ensuring remediation of hung multiplexer bus channels between a baseboard management controller (BMC), multiplexer, and I | 02-12-2015 |
20150058660 | MULTIMASTER SERIAL SINGLE-ENDED SYSTEM FAULT RECOVERY - A system to recover a multimaster serial single-ended bus and a faulted connected device includes a director device connected to the faulted connected device via the multimaster serial single-ended bus. The director device includes a central processing unit, a field programmable gate array, and a management module in communication with the faulted connected device, the management module configured to recover the faulted connected device and the multimaster serial single-ended bus. The management module may transmit a clock pulse to the faulted connected device if the faulted connected device is holding a data line (SDA) low, transmit a stop command to the faulted connected device if the faulted connected device is holding SDA low and/or read and compare a register value in the faulted device against an expected value to determine if the faulted device and the multimaster serial single-ended bus have been recovered. | 02-26-2015 |
20150082080 | Fault Isolation Method, Computer System, and Apparatus - A fault isolation method, computer system, and apparatus, which are capable of monitoring a state of a second endpoint device in the extended domain, and setting a device state record according to the state of the second endpoint device; after an access request between the second endpoint device and the primary domain is received, querying the device state record according to identifier information that is of the second endpoint device and in the access request, and determining the state of the second endpoint device; and if the state of the second endpoint device is a fault state, discarding the access request to prevent communication between the faulty second endpoint device and the primary domain and prevent spreading a fault to the primary domain, thereby ensuring system reliability. | 03-19-2015 |
20150089276 | Method for Shortening Enumeration of Tightly Coupled USB Device - In a Universal Serial Bus (USB) enumeration procedure, a USB Host questions a USB Device for its capabilities and chooses a set of capabilities that best fit. When the USB Device is enumerated, the USB Host may perform several time-consuming and power-consuming operations. However, when the USB Device is tightly or permanently coupled to the USB Host, part of the enumeration procedure may be redundant and can be eliminated. Accordingly, a method, an apparatus, and a computer program product for shortening enumeration of the USB Device tightly coupled to the USB Host are provided. The USB Host sends a request for a Device descriptor to the USB Device, receives a plurality of descriptors in a single transfer from the USB Device, and sets a configuration of the USB Device based on the received plurality of descriptors. | 03-26-2015 |
20150100818 | BACK-OFF MECHANISM FOR A PERIPHERAL PAGE REQUEST LOG - A system and method of managing requests from peripherals in a computer system are provided. In the system and method, an input/output memory management unit (IOMMU) receives a peripheral page request (PPR) from a peripheral. In response to a determination that a criterion regarding an available capacity of a PPR log is satisfied, a completion message is sent to the peripheral indicating that the PPR is complete and the PPR is discarded without queuing the PPR in the PPR log. | 04-09-2015 |
20150121124 | METHOD AND SYSTEM FOR STREAMER REDUNDANCY - Streamer redundancy. At least some illustrative embodiments are methods including: in a streamer towed by a survey vessel, sensing a first interconnection of a daisy chain the first interconnection between a first networked unit and a second networked unit, wherein the first networked unit and the second networked unit comprise a portion of a plurality of networked units; and determining that a fault condition exists on the first interconnection in response to the sensing; disabling the first interconnection responsive to the fault condition; enabling a second interconnection responsive to the fault condition, wherein the second interconnection couples the first networked unit and a third networked unit of the plurality of networked units and wherein the second interconnection does not couple to the second networked unit; and reporting information indicative of the fault condition to the survey vessel via the second networked unit. | 04-30-2015 |
20150339181 | DIGITAL INFORMATION TRANSFER SYSTEM INCLUDING FAULT PROTECTION - A digital information transfer system includes an electronic driver unit in electrical communication with a power supply to receive an input voltage. The driver converts the input data into output data based on a digital information transfer system protocol. An electronic fault detection is configured to determine a fault condition of the at least one output transmission line based on a comparison between a voltage level of the at least one output transmission line and the input voltage. An electronic fault protection module is in electrical communication with each of the driver unit, the at least one output transmission line and the fault detection module. The electronic fault protection module is configured to selectively disconnect the driver unit from the at least one output transmission line in response to detecting the fault condition. | 11-26-2015 |
20150378852 | METHODS AND SYSTEMS OF MANAGING AN INTERCONNECTION - A printed circuit card ( | 12-31-2015 |
20160062941 | HARDWARE DATA STRUCTURE FOR TRACKING ORDERED TRANSACTIONS - Methods and hardware data structures are provided for tracking ordered transactions in a multi-transactional hardware design using a counter and an indexed table. The data structure includes a counter that keeps track of the number of in-flight transactions; a table that keeps track of the age of each of the in-flight transactions using the counter; and control logic that verifies a transaction response has been received in the correct order (e.g. corresponds to the oldest in-flight transaction) based on the age information in the table. | 03-03-2016 |
20160110270 | INFORMATION PROCESSING DEVICE, PORT CONTROL METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - An information processing device includes a plurality of communication units and a processor. Each of the plurality of communication units has a plurality of ports and is replaceable. The processor is configured to execute a process. The process includes specifying an active port mounted on one of the communication units on which a faulty active port is also mounted and switching the active port specified at the specifying to a standby port. | 04-21-2016 |
20160179637 | AUTOMATIC FAILOVER AND FAILBACK BETWEEN PRIMARY AND SECONDARY STORAGE SYSTEMS | 06-23-2016 |
20160203100 | IMPLEMENTING HEALTH CHECK FOR OPTICAL CABLE ATTACHED PCIE ENCLOSURE | 07-14-2016 |
20160378632 | PORT SELECTION AT A COMPUTING DEVICE - Techniques for port selection are described herein. The techniques may include an apparatus a transceiver including a plurality of ports. The apparatus includes a selector to select a port from among the plurality of ports. The port is selected to receive a repair operation to repair a basic input output system. | 12-29-2016 |
714500110 | Access processor affected (e.g., I/O processor, MMU, or DMA processor, etc.) | 25 |
20110078492 | HOME AGENT DATA AND MEMORY MANAGEMENT - Methods and apparatus relating to home agent data and memory management are described. In one embodiment, a scrubber logic corrects an error at a location in a memory corresponding to a target address by writing back the corrected version of data to the target location. In an embodiment, a map out logic maps out an index or way of a directory cache in response to a number of errors, corresponding to the directory cache, exceeding a threshold value. Other embodiments are also disclosed. | 03-31-2011 |
20110107139 | TIMER BOUNDED ARBITRATION PROTOCOL FOR RESOURCE CONTROL - Example apparatus, methods, and computers prevent a split brain scenario in a pair of high availability servers by maintaining single writer access to a resource by controlling the resource according to a timer bounded arbitration protocol that controls self-termination of a writer process. One example method includes monitoring control of an arbitration (ARB) block by an active file system manager (FSM) and selectively causing a selection of a standby metadata controller (MDC) when control of the ARB block does not satisfy the timer bounded ARB protocol. The example method also includes selectively forcing a hardware reset of an apparatus running the active FSM and selectively establishing an FSM on a selected redundant MDC as a replacement FSM. | 05-05-2011 |
20110113279 | Method Apparatus and System for a Redundant and Fault Tolerant Solid State Disk - A redundant and fault tolerant solid state disk (SSDC) includes a determination module configured to identify a first SSDC configured to connect to a flash array and a second SSDC configured to connect to the flash array. A capture module is configured to capture a copy of an I/O request received by the first SSDC from a port of a dual port connector, and/or capture a copy of an I/O request received by the second SSDC from a port of the dual port connector, and identify a write I/O request from the I/O request. A detection module is configured to detect a failure in the first SSDC. A management module is configured to manage access to a flash array by the first SSDC and the second SSDC. An error recovery and failover module is configured to automatically reassign work from the first SSDC to the second SSDC. | 05-12-2011 |
20110126042 | WRITE THRESHOLD UTILIZATION IN A DISPERSED STORAGE SYSTEM - A method begins with a processing module sending a plurality of dispersed storage write commands to plurality of dispersed storage (DS) units for storing a plurality of encoded data slices. The method continues with the processing module receiving, within a time period, acknowledgements from at least some of the plurality of DS units to produce received acknowledgements. The method continues with the processing module determining whether a number of received acknowledgements compares favorably to a write threshold. The method continues with the processing module changing at least one of the write threshold and at least one of the plurality of DS units when the number of received acknowledgements does not compare favorably to the write threshold. | 05-26-2011 |
20110131443 | Mechanism for Automatic Adjustment of Virtual Machine Storage - A mechanism for automatic adjustment of virtual machine (VM) storage is disclosed. A method of embodiments of the invention includes stopping, by a host computing device, a virtual machine (VM) hosted by the host computing device from running upon detecting a write error due to lack of storage on the VM, communicating, by the host computing device, an out-of-storage notification from a hypervisor of the host computing device to a host management agent, and sending, by the host computing device, data associated with the out-of storage notification and the VM to a host controller that manages the host computing device, wherein the host controller causes storage for the VM to be increased. | 06-02-2011 |
20110145632 | TRANSPARENT RECOVERY FROM HARDWARE MEMORY ERRORS - A method is provided for recovering from an uncorrected memory error located at a memory address as identified by a memory device. A stored hash value for a memory page corresponding to the identified memory address is used to determine the correct data. Because the memory device specifies the location of the corrupted data, and the size of the window where the corruption occurred, the stored hash can be used to verify memory page reconstruction. With the known good part of the data in hand, the hashes of the pages using possible values in place of the corrupted data are calculated. It is expected that there will be a match between the previously stored hash and one of the computed hashes. As long as there is one and only one match, then that value, used in the place of the corrupted data, is the correct value. The corrupt data, once replaced, allows operation of the memory device to continue without needing to interrupt or otherwise affect a system's operation. | 06-16-2011 |
20110161725 | DYNAMICALLY TRACKING VIRTUAL LOGICAL STORAGE UNITS - In virtualized environments, storage may be managed dynamically due to the changing data storage requirements. In such environments, logical storage unit identifiers (LUN IDs) may be modified as a result of deleting an existing mapping between physical storage and a virtualization server and recreating the mapping. This can result in I/O request failure. Techniques for resolving errors resulting from LUN ID modifications can be time-intensive and labor-intensive and can disrupt a communication path between a host device and the physical storage. Functionality can be implemented to dynamically identify the LUN ID modifications, determine valid LUN IDs, and retransmit failed I/O requests. This can help minimize I/O request failures due to LUN ID modifications without disrupting the communication path between the host device and the physical storage. | 06-30-2011 |
20110296234 | VIRTUAL MACHINE I/O MULTIPATH CONFIGURATION - Disclosed are methods for exposing multiple interfaces of a communications fabric (Ethernet, FibreChannel, Serial-Attached-SCSI, Infiniband, etc.) of a virtual machine and automatically mapping those interfaces onto separate physical interfaces. Such an approach may preserve the simple management experience of a single connection point into the virtual machine while allowing the OS and application within the virtual machine to supply information necessary to efficiently use the multiply underlying physical links. | 12-01-2011 |
20110320861 | SWITCH FAILOVER CONTROL IN A MULTIPROCESSOR COMPUTER SYSTEM - A system and a method for failover control comprising: maintaining a primary device table entry (DTE) in a first table activated for a first adapter in communication with a first processor node having a first root complex via a first switch assembly and maintaining a secondary DTE in standby for a second adapter in communication with a second processor node having a second root complex via a second switch assembly; maintaining a primary DTE in a second table activated for the second adapter and maintaining a secondary DTE in standby for the first adapter; and upon a failover, updating the secondary DTE in the first table as an active entry for the second adapter and forming a path to enable traffic to route from the second adapter through the second switch assembly over to the first switch assembly and up to the first root complex of the first processor node. | 12-29-2011 |
20120110374 | Methods and Systems for Measuring I/O Signals - Some embodiments of the invention relate to an embedded processing system. The system includes a memory unit to store a plurality of operating instructions and a processing unit coupled to the memory unit. The processing unit can execute logical operations corresponding to respective operating instructions. An input/output (I/O) interface receives a first time-varying waveform and provides an I/O signal that is based on the first time-varying waveform. A comparison unit coupled to the processing unit and adapted to selectively assert an error signal based on whether the I/O signal has a predetermined relationship with a reference signal, wherein the predetermined relationship holds true during normal operation but fails to hold true when an unexpected event occurs and causes an unexpected change at least one of the I/O signal and reference signal. | 05-03-2012 |
20130007507 | MECHANISM FOR ADVANCED SERVER MACHINE CHECK RECOVERY AND ASSOCIATED SYSTEM SOFTWARE ENHANCEMENTS - Embodiments of a hardware processor including a plurality of machine state registers (MSRs) are described. At least one of the MSRs includes an erroring logical processing (ELP) bit which when set, indicates that a particular thread executing on the hardware processor caused an error. | 01-03-2013 |
20130132766 | METHOD AND APPARATUS FOR FAILOVER AND RECOVERY IN STORAGE CLUSTER SOLUTIONS USING EMBEDDED STORAGE CONTROLLER - Disclosed is a storage enclosure having a plurality of servers each having a storage controller. A second storage controller that is not part of any of the plurality of servers is embedded in the storage enclosure. The second storage controller is configured to process I/O commands directed to one of the server's storage controllers when a storage controller fails. In this manner, the storage controllers that are part of the servers may be fully utilized and still have a failover capability to the enclosure storage controller instead of another server storage controller that may also be fully utilized. | 05-23-2013 |
20140181573 | FABRIC DISCOVERY FOR A CLUSTER OF NODES - Implementations of discovery functionalities in accordance with the present invention are characterized by being exceptionally minimalistic. A primary reason and benefit for such minimalistic implementations relate to these discovery functionalities being implemented via a management processor and associated resources of a system on a chip (SoC) unit as opposed to them being implemented on data processing components of a cluster of nodes (i.e., central processing core components). By focusing on such a minimalist implementation, embodiments of the present invention allow discovery functionalities to be implemented on a relatively low-cost low-power management processor coupled to processing cores that provide for data serving functionality in the cluster of nodes. | 06-26-2014 |
20140281676 | SYSTEM-LEVEL ISSUE DETECTION AND HANDLING - Issue detection and handling technology in which issue definitions that enable detection of issues at different devices of an enterprise level system that operate different applications are maintained. Solution definitions that relate to resolving issues detected based on the issue definitions are also maintained. Issue detection logic based on the issue definitions is provided to each of the different devices of the enterprise level system. Issue detection information collected based on the issue detection logic is received from at least one of the different devices of the enterprise level system. Based on the issue detection information, an issue at the at least one device is determined. A solution definition related to resolving the determined issue is accessed from the solution definitions. Based on the accessed solution definition, an operation directed to handling the determined issue is performed. | 09-18-2014 |
20140289553 | INTEGRATED CIRCUIT - Certain embodiments provide an integrated circuit comprising: plural devices; a processor; a DMA controller; a bus; and a failure diagnostic device connected to the DMA controller and diagnoses failure of the DMA controller, the failure diagnostic device including: a timer of which a limit time is set up by the processor for the time from a notification of a transfer request to the DMA controller down to output of a transfer source address signal to the bus and starts a timing operation in response to the notification; a monitor that stops the timing operation in response to the output from the DMA controller to the bus; and a detector that detects occurrence of a failure according to an excess of an outcome of the timing operation stopped by the monitor over the limit time. | 09-25-2014 |
20140365815 | Small Computer System Interface Input Output (SCSI IO) Referral - The method includes receiving a command at a first storage system of a block storage cluster. The command is transmitted by the initiator system to the first storage system via a network and includes a request for data. The method further includes transferring the stored data from the first storage system to the initiator system via the network when data requested in the data request is stored by the first storage system. The method further includes transmitting a referral response from the first storage system to the initiator system when a portion of the data requested in the data request is not stored by the first storage system, but is stored by a second storage. system of the block storage cluster. | 12-11-2014 |
20150127971 | SELECTIVELY COUPLING A PCI HOST BRIDGE TO MULTIPLE PCI COMMUNICATION PATHS - Instead of disabling PCI communication between system resources in a host computing device and I/O devices when a PCI Host Bridge (PHB) is reset, the host computing device may include a PCI communication path for maintaining communication between the system resources and the I/O devices. In one embodiment, the redundant PCI communication path includes a second PHB that is maintained in a standby state. The host may monitor the errors generated by a plurality of master PHBs and select a master PHB that satisfies an error threshold. The second PHB (i.e., a servant PHB) and the selected master PHB are synchronized, and the second PHB is coupled to the PCI communication path between the master PHB and a PCI switch. The master PHB can then be reset while the second PHB maintains PCI communication between the host and the I/O devices. | 05-07-2015 |
20150149815 | BIOS FAILOVER UPDATE WITH SERVICE PROCESSOR HAVING DIRECT SERIAL PERIPHERAL INTERFACE (SPI) ACCESS - Certain aspects direct to systems and methods of BIOS failover update with a service processor (SP) having direct serial peripheral interface (SPI) access to a basic input/output system (BIOS) chip of a host computer. In certain embodiments, the SP receives a failover backup image from a BIOS being executed at a CPU of the host computer through a system interface, and stores the failover backup image in the volatile memory. Then the SP monitors operation of the BIOS by receiving, from the BIOS, a notification signal. When the SP detects an error in the operation of the BIOS based on the notification signal, the SP sends a copy of the failover backup image to the BIOS chip of the host computer through the SPI to replace a current BIOS image stored in the BIOS chip of the host computer with the copy of the failover backup image. | 05-28-2015 |
20150331765 | COORDINATION TECHNIQUES FOR REDUNDANT ARRAY OF INDEPENDENT DISKS STORAGE CONTROLLERS - Methods and structure for coordinating between Redundant Array of Independent Disks (RAID) storage controllers are provided. An exemplary system includes a RAID controller. The RAID controller includes a Peripheral Component Interconnect Express (PCIe) interface, a Serial Attached Small Computer System Interface (SAS) port operable to communicate with another RAID controller, and a command unit. The command unit is able to direct the interface to contact another PCIe interface at the other controller, to acquire an identifier of the other controller stored in a PCIe Inbound Map (PIM) for the other interface, and to activate a feature for the controller that enables cooperative management of storage devices between the controller and the other controller, if the identifier of the other controller matches discovery information maintained at the controller. | 11-19-2015 |
20150363259 | MANAGING A STORAGE DEVICE USING A HYBRID CONTROLLER - Methods, apparatuses, and computer program products for managing a storage device using a hybrid controller are provided where the storage device comprises an internal peripheral component interconnect express (PCIe) interface to control solid state memory within the storage device. In particular embodiments, the storage device includes a first external interface configured to establish an external PCIe link and a second external interface configured to establish at least one of an external serial attached small computer system interface (SAS) link and an external serial advanced technology attachment (SATA) link. Embodiments include receiving from an external source, by the hybrid controller, a first command at the first external interface and a second command at the second external interface; and concurrently implementing, by the hybrid controller, the first command using a PCIe protocol and the second command using one of a SAS protocol and a SATA protocol. | 12-17-2015 |
20150378959 | MULTI-PROTOCOL SERIAL NONVOLATILE MEMORY INTERFACE - An electronic device including a multi-protocol serial nonvolatile memory interface is disclosed. The interface includes: a first line operative to perform functions of a first chip select line when the interface operates as a SPI of the electronic device; a second line operative to perform functions of a second chip select line when the interface operates as the SPI of the electronic device; a third line operative to perform functions of a clock line when the interface operates as either the SPI or an I2C interface of the electronic device, and a fourth line configured to perform functions of a mast-out-slave-in (MOSI) line and a master-in-slave-out (MISO) line when the interface operates as the SPI of the electronic device, the fourth line further operative to perform functions of a serial data line when the interface operates as the I2C interface of the electronic device. | 12-31-2015 |
20160132395 | PERIPHERAL BUS ERROR CONTAINMENT AND RECOVERY - A peripheral bus error containment and recovery system enables a bus device to experience a fatal bus error and recover without stopping execution of an operating system. When a fatal bus error is detected at the bus device, a bus controller may deactivate a data link layer for a downstream port populated by the bus device, causing an operating system device driver to be uninstalled for the bus device. Then, the operating system device driver may be reinstalled without physically removing the bus device. | 05-12-2016 |
20160147606 | DETECTING AND SPARING OF OPTICAL PCIE CABLE CHANNEL ATTACHED IO DRAWER - A method, system and computer program product are provided for detecting state and sparing of optical Peripheral Component Interconnect Express (PCI-Express or PCIE) cable channels attached to an IO drawer. System firmware is provided for implementing health check functions and state detection and sparing functions. One or more optical cables are connected between a host bridge and an PCIE enclosure, each optical cable includes one or more spare optical channels. An identified failed optical channel is rerouted to the spare optical channel. | 05-26-2016 |
20160170855 | IMPLEMENTING SHARED ADAPTER CONFIGURATION UPDATES CONCURRENT WITH MAINTENANCE ACTIONS IN A VIRTUALIZED SYSTEM | 06-16-2016 |
20160378633 | REPAIR OF FAILED FIRMWARE THROUGH AN UNMODIFIED DUAL-ROLE COMMUNICATION PORT - A repair engine for a computing platform is separate from the repeatedly-rewritten storage components for software and firmware. For example, the repair engine may reside in ROM or hardware logic. Through dedicated connections to one or more controllers, the repair engine detects when any of the platform's dual-role ports (e.g., on-the-go USB ports) is connected to a host device. The repair engine responds by opening firmware-independent communication with the host device and supporting the downloading and execution (DnX) of a firmware image from the host. Because the communication is initiated independently of the firmware, even a catastrophic firmware failure is repairable without requiring a user to identify and use a specially modified port. | 12-29-2016 |