Abstract: Disclosed is an information sharing system that includes a concealment processing section, an analysis section, and an information transmission section. The concealment processing section conceals information collected from any one or more of multiple organizations in accordance with the level of credibility between the organizations. The analysis section makes an analysis by using the information concealed by the concealment processing section and an analysis logic collected from any one or more of the multiple organizations. The information transmission section transmits the result of analysis by the analysis section to any one or more of the multiple organizations, and allows each organization to share the result of analysis.

Abstract: Systems and methods described herein can involve, for receipt of a write request from a server to a first storage system associated with a mounted volume having an attribute of read only or read/write, the write request processed by a second storage system, the second storage system setting the write destination of write data associated with the write request to the first storage system or the second storage system based on the attribute.

Abstract: Example implementations described herein involve systems and methods that can include, responsive to a request to deploy an application using a storage of a storage system, managing a storage configuration for the application; managing data information and storage configuration information associated with a copy relationship between data used by the application and the storage configuration for the storage system; extracting and evaluating possible configuration patterns from the data information and the storage configuration information; and providing ones of the possible configuration patterns that satisfy specified requirements for the application.

Abstract: A method for application migrating from a first cluster to a second cluster. The method may include detecting application migration request from the first cluster to the second cluster for performing application migration; identifying first volumes associated with the first cluster that are used by the application; establishing data copying from the first volumes of a first storage device associated with the first cluster to second volumes of a second storage device associated with the second cluster; determining if a copy condition is met based on the data copying; for meeting the copy condition, stopping the application on the first cluster; flushing uncopied data from the first volumes to the second volumes; determining whether the flushing of the uncopied data is completed; and for the flushing of the uncopied data being completed, deploying the application on the second cluster.

Abstract: A method for redundancy loss recovery. The method may include creating pairs of quorum sets, wherein each pair of the pairs of quorum sets comprises at least two volumes and a quorum, and each of at least two volumes and quorum are located at different storage devices; for a failure occurring in a storage device associated with the pairs of quorum sets or in a network communication between storage devices of the pairs of quorum sets, modifying volume attributes associated with volumes of the pairs of quorum sets; and for the failure occurring in a storage device associated with the pairs of quorum sets, relocating quorum associated with the failed storage device to another storage device that is different from storage devices associated with the pairs of quorum sets.

Abstract: Systems and methods described herein can involve, responsive to a request of a volume requiring remote copy, checking an IO throughput setting of the volume; using network bandwidth based on the IO throughput setting of the volume; and for the use of the network bandwidth not exceeding total remote copy network resources allocated for existing volumes configured with remote copy and the volume requiring remote copy, establishing a remote copy relationship for the volume in response to the request.

Abstract: A method for application migrating from a first cluster to a second cluster. The method may include detecting application migration request from the first cluster to the second cluster for performing application migration; identifying first volumes associated with the first cluster that are used by the application; establishing data copying from the first volumes of a first storage device associated with the first cluster to second volumes of a second storage device associated with the second cluster; determining if a copy condition is met based on the data copying; for meeting the copy condition, stopping the application on the first cluster; flushing uncopied data from the first volumes to the second volumes; determining whether the flushing of the uncopied data is completed; and for the flushing of the uncopied data being completed, deploying the application on the second cluster.

Abstract: A method for redundancy loss recovery. The method may include creating pairs of quorum sets, wherein each pair of the pairs of quorum sets comprises at least two volumes and a quorum, and each of at least two volumes and quorum are located at different storage devices; for a failure occurring in a storage device associated with the pairs of quorum sets or in a network communication between storage devices of the pairs of quorum sets, modifying volume attributes associated with volumes of the pairs of quorum sets; and for the failure occurring in a storage device associated with the pairs of quorum sets, relocating quorum associated with the failed storage device to another storage device that is different from storage devices associated with the pairs of quorum sets.

Abstract: Example implementations described herein provide systems and methods for detecting damage to data by malware and involve generating log information at a storage device based on a write input/output (I/O) provided to the storage device by one or more servers, the log information comprising time information for storing the write I/O to the storage device, logical block information for the write I/O, and a compression ratio associated with storing the write I/O to the storage device; and, for a request by a management server to provide the log information for a specified time range for the storage device, returning, from the storage device, the logical block information and the compression ratio associated with the time information within the specified time range.

Abstract: Aspects of the present disclosure involve an innovative method for detecting error zones from a plurality of volume groups. The method may include creating a plurality of probe groups for error detection; detecting a new error associated with the plurality of probe groups and the plurality of volume groups; retrieving error information associated with the new error, wherein the error information comprises an error source, an error type, and an error time; retrieving an error correlation rule associated with the error information; determining if the error correlation rule is satisfied by the error information and information of other known errors; and identifying a common zone based on the error information and the information of the other known errors as an error zone.

Abstract: Aspects of the present disclosure involve an innovative method for detecting error zones from a plurality of volume groups. The method may include creating a plurality of probe groups for error detection; detecting a new error associated with the plurality of probe groups and the plurality of volume groups; retrieving error information associated with the new error, wherein the error information comprises an error source, an error type, and an error time; retrieving an error correlation rule associated with the error information; determining if the error correlation rule is satisfied by the error information and information of other known errors; and identifying a common zone based on the error information and the information of the other known errors as an error zone.

Abstract: Example implementations described herein involve systems and methods that can include, responsive to a request to deploy an application using a storage of a storage system, managing a storage configuration for the application; managing data information and storage configuration information associated with a copy relationship between data used by the application and the storage configuration for the storage system; extracting and evaluating possible configuration patterns from the data information and the storage configuration information; and providing ones of the possible configuration patterns that satisfy specified requirements for the application.

Abstract: The infrared absorber 1 is provided with a finely structured metal layer 2 which causes local surface plasmon resonance by absorption infrared light; a dielectric layer 3 under the finely structured metal layer, and a metal layer 4 under the dielectric layer 3. The dielectric layer 3 is stacked between the layers 2 and 4 and consists of an organic polymer material having a molecular bond whose vibration is excited by infrared absorption. Further, the gas sensor is provided with the infrared absorber as the light source and/or the photodetector.

Abstract: While a connection between a copy pair comprising a primary volume in a first storage system associated with a primary host and a secondary volume in a second storage system associated with a secondary host is disconnected, systems and methods described herein can involve changing a state of the copy pair for each of the primary volume and the secondary volume to a temporary suspended state; detecting whether a network connection has recovered; for the detecting indicative of the network connection having recovered, changing the state of the copy pair for the each of the primary volume and the secondary volume to a copy pair state; and for the detecting indicative of the network connection not being recovered after a threshold period of time has elapsed, changing the state of the copy pair for the each of the primary volume and the secondary volume to a suspended state.

Abstract: A virtual storage system according to an aspect of the present invention includes multiple storage systems each including: a storage controller that accepts a read/write request for reading or writing from and to a logical volume; and multiple storage devices. The storage system defines a pool that manages the storage device capable of allocating any of storage areas to the logical volume, and manages the capacity (pool capacity) of the storage areas belonging to the pool, and the capacity (pool available capacity) of unused storage areas in the pool. Furthermore, the storage system calculates the total value of the pool available capacities of the storage systems included in the virtual storage system, and provides the server with the total value as the pool available capacity of the virtual storage system.

Abstract: While a connection between a copy pair comprising a primary volume in a first storage system associated with a primary host and a secondary volume in a second storage system associated with a secondary host is disconnected, systems and methods described herein can involve changing a state of the copy pair for each of the primary volume and the secondary volume to a temporary suspended state; detecting whether a network connection has recovered; for the detecting indicative of the network connection having recovered, changing the state of the copy pair for the each of the primary volume and the secondary volume to a copy pair state; and for the detecting indicative of the network connection not being recovered after a threshold period of time has elapsed, changing the state of the copy pair for the each of the primary volume and the secondary volume to a suspended state.

Abstract: There are provided an information processing system that operates virtual machines and storage controllers on a processor, and an information processing method executed by the information processing system. A storage controller group capable of taking over processing between the storage controllers arranged in different nodes is provided. The virtual machine is movable between the different nodes by deploy. The virtual machine and the storage controller that processes data input and output by the virtual machine are arranged in the same node. A combination of the virtual machines that cannot be arranged in the same node is defined by a restriction. A management unit arranges one of the virtual machines that cannot be arranged in the same node in the node in which the storage controller included in the storage controller group to which the storage controller used by the other virtual machine belongs is not arranged.

Abstract: Provided is a resource allocation determination method for a VM/container, volume, and the like created as a new VM/container or volume without exceeding an upper limit of a computer resource of a node in an HCI environment. In order to determine allocation of at least one of a virtual machine, a container, and a volume in a system of the HCI environment, a use state of a computer resource shared by a virtual machine and a storage controller operating on each node is managed, and an allocation destination node of the new virtual machine, container, or volume is determined based on the use state without exceeding an upper limit of a computer resource of the allocation destination node.

Abstract: Example implementation described herein are directed to a mechanism to provision data volume which requires remote data copy between separated clusters, especially for the container platform. For a request to create a volume made to the clusters, example implementations can involve creating a first volume in a first cluster; obtaining volume information of a corresponding second volume from a second cluster; configuring the first volume and the corresponding second volume in the second cluster to have a remote copy relationship based on the obtained volume information; and setting access from the container to the first volume and the corresponding second volume based on the remote copy relationship.

Abstract: Example implementations described herein provide systems and methods for detecting damage to data by malware and involve generating log information at a storage device based on a write input/output (I/O) provided to the storage device by one or more servers, the log information comprising time information for storing the write I/O to the storage device, logical block information for the write I/O, and a compression ratio associated with storing the write I/O to the storage device; and, for a request by a management server to provide the log information for a specified time range for the storage device, returning, from the storage device, the logical block information and the compression ratio associated with the time information within the specified time range.