Abstract:
A processor includes a plurality of processing sections, each of which executes a predetermined process. A plurality of fault detecting circuits are respectively provided for the plurality of processing sections, to detect a fault in one of the plurality of processing sections as a fault processing section to generate a fault detection signal. A fault monitoring and control section controls a normal processing section as at least one of the plurality of processing sections other than the fault processing section to execute a relieving process in response to the fault detection signal. The relieving process is determined based on a process load of the fault processing section, a process load of the normal processing section, and priority levels of processes to be executed by the fault processing section and the normal processing section.
Abstract:
Several different embodiments of a segmented object storage system are described. The object storage system divides files into a number of object segments, each segment corresponding to a portion of the object, and stores each segment individually in the cloud storage system. The system also generates and stores a manifest file describing the relationship of the various segments to the original data file. Requests to retrieve the segmented file are fulfilled by consulting the manifest file and using the information from the manifest to reconstitute the original data file from the constituent segments. Modifying, appending to, or truncating the object is accomplished by manipulating individual segments and the manifest file. In further embodiments, manipulation of the individual object segments and/or the manifest is used to implement copy-on-write, snapshotting, software transactional memory, and peer-to-peer transmission of the large file.
Abstract:
Various method, system, and computer program product embodiments for facilitating upgrades in a computing storage environment are provided. In one such embodiment, one of an available plurality of rolling upgrade policies registering at least one selectable upgrade parameter for an upgrade window is selected. A node down tolerance factor is set for at least one node in the computing storage environment. The node down tolerance factor specifies a percentage of elements of the at least one node taken offline to apply the selected one of the available plurality of rolling upgrade policies during the upgrade window.
Abstract:
Near clones for a set of targeted computing systems are provided by determining a highest common denominator set of components among the computing systems, producing a pseudo-clone configuration definition, and realizing one or more pseudo-clone computing systems as partially configured backups for the targeted computing systems. Upon a planned failover, actual failure, or quarantine action on a targeted computing system, a difference configuration is determined to complete the provisioning of the pseudo-clone system to serve as a replacement system for the failed or quarantined system. Failure predictions can be used to implement the pseudo-clone just prior to an expected first failure of any of the targeted systems. The system can also interface to an on-demand provisioning management system to effect automated workflows to realize pseudo-clones and replacement systems automatically, as needed.
Abstract:
Disclosed is a method, system, and computer program product for automatically configuring information systems to support mission objectives. A Mission SoulPad is connected to an information system via a communication bus, such as a USB bus connection. The Mission SoulPad may autonomously detect and configure components of the information system (e.g., displays, sensors, emitters, transceivers) to support the defined objectives of the Mission SoulPad. The Mission SoulPad may also identify malfunctioning components of the information system needing repair or replacement. Typical operations of malfunctioning components may be dynamically re-routed to functional components. Entire sensor and information display suites may be transitioned simply by moving the Mission SoulPad between available information systems. This ensures that mission critical information is consistently available regardless of the type of system the Mission SoulPad is connected to.
Abstract:
Apparatus and methods, such as those that read data from non-volatile integrated circuit memory devices, such as NAND flash. For example, disclosed techniques can be embodied in a device driver of an operating system. Errors are tracked during read operations. If sufficient errors are observed during read operations, the block is then retired when it is requested to be erased or a page of the block is to be written. One embodiment is a technique to recover data from uncorrectable errors. For example, a read mode can be changed to a more reliable read mode to attempt to recover data. One embodiment further returns data from the memory device regardless of whether the data was correctable by decoding of error correction code data or not.
Abstract:
A redundant storage virtualization computer system is provided. The redundant storage virtualization computer system comprises a host entity for issuing an IO request, a redundant storage virtualization controller set coupled to the host entity for performing an IO operation in response to the IO request issued by the host entity, and a plurality of physical storage devices for providing storage space to the computer system. Each of the physical storage devices is coupled to the redundant storage virtualization controller set. The redundant storage virtualization controller set comprises a first and a second storage virtualization controller both coupled to the host entity, the storage virtualization controllers communicate therebetween via a PCI-Express interconnect. In the redundant storage virtualization controller set, a storage virtualization controller will take over the functionality originally performed by the alternate storage virtualization controller when the alternate storage virtualization controller is not on line.
Abstract:
A multistage interconnect network (MIN) capable of supporting massive parallel processing, including point-to-point and multicast communications between processor modules (PMs) which are connected to the input and output ports of the network. The network is built using interconnected switch nodes arranged in 2 [logb N] stages, wherein b is the number of switch node input/output ports, N is the number of network input/output ports and [logb N] indicates a ceiling function providing the smallest integer not less than logb N. The additional stages provide additional paths between network input ports and network output ports, thereby enhancing fault tolerance and lessening contention.
Abstract:
Disclosed is a method, system, and computer program product for automatically configuring information systems to support mission objectives. A Mission SoulPad is connected to an information system via a communication bus, such as a USB bus connection. The Mission SoulPad may autonomously detect and configure components of the information system (e.g., displays, sensors, emitters, transceivers) to support the defined objectives of the Mission SoulPad. The Mission SoulPad may also identify malfunctioning components of the information system needing repair or replacement. Typical operations of malfunctioning components may be dynamically re-routed to functional components. Entire sensor and information display suites may be transitioned simply by moving the Mission SoulPad between available information systems. This ensures that mission critical information is consistently available regardless of the type of system the Mission SoulPad is connected to.
Abstract:
A redundant storage virtualization computer system is provided. The redundant storage virtualization computer system comprises a host entity for issuing an IO request, a redundant storage virtualization controller set coupled to the host entity for performing an IO operation in response to the IO request issued by the host entity, and a plurality of physical storage devices for providing storage space to the computer system. Each of the physical storage devices is coupled to the redundant storage virtualization controller set. The redundant storage virtualization controller set comprises a first and a second storage virtualization controller both coupled to the host entity, the storage virtualization controllers communicate therebetween via a PCI-Express interconnect. In the redundant storage virtualization controller set, a storage virtualization controller will take over the functionality originally performed by the alternate storage virtualization controller when the alternate storage virtualization controller is not on line.