Abstract: An object of the present invention is to realize a proper storage operation in accordance with the state of a storage devices which constructed remote copy pair via a network. A first storage device for providing a first volume and a second storage device for providing a second volume as a remote copy destination of the first volume, includes: a storing unit for policy sets that is a regulation group relating to the service quality of the second volume; and a policy selection unit for selecting a policy set to be used from the plurality of policy sets in accordance with the states of the first volume and the second storage device. According to such a configuration and operation, it is possible to properly operate the storage device by selecting a policy set before and after the failover or according to the presence or absence of degeneration.

Abstract: A storage device is connected to a migration source storage device that stores migration target data via a data line. A transportable external mass storage device that stores the migration target data migrated from the migration source storage device is connected to the storage device. The storage device references logical configuration information received from the migration source storage device via the data line and restores and stores the migration target data stored in the external mass storage device.

Abstract: A network interface for a storage controller includes a processor and a memory that stores an instruction code to be executed by the processor. The processor executes protocol processing for transmitting and receiving packets via a network. The processor reproduces a first packet not received from the network, from a plurality of other received packets included in an error correction packet group same as that of the first packet.

Abstract: To be able to support the efficient handling of problems during maintenance. A management board determines an accomplishment sequence of handling manipulation for failures on a maintenance target. The management board includes a CPU, memory, and a storage device. The memory or the storage device stores: condition information associating the handling manipulation with a condition concerning at least accomplishment or non-accomplishment of the manipulation; and failure handling information that associates a failure occurring on the maintenance target with the handling manipulation. The CPU is configured to determine the accomplishment sequence of the handling manipulations so that multiple handling manipulations for multiple failures occurring on the maintenance target satisfy the condition.

Abstract: The efficiency of the maintenance of a storage apparatus including a plurality of flash drives can be enhanced. In a storage apparatus including a plurality of SSDs and a CPU, the CPU specifies, based on lifetimes of the SSDs depending on amounts of data written to the SSDs, the SSD to be replaced on a scheduled maintenance date, gives notice of the SSD specified to be replaced, and copies data in the SSD to be replaced to another SSD by the scheduled maintenance date on which the replacement is to be performed.

Abstract: In a computer system, in a case where a throughput upper limit value is set as upper limit value 1, a throughput limit notification program executed by a storage device gives a notification to a storage management device when a throughput of a logical volume reaches the upper limit value 1. In response to this notification, a throughput upper limit value setting program executed by the storage management device outputs, to the storage device, a command for switching the throughput upper limit value from the upper limit value 1 to upper limit value 2, such that the throughput upper limit value is switched.

Abstract: An information processing system includes a first storage system for supplying a primary site, and a second storage system for supplying a secondary site. The first storage system is allowed to execute replication by transferring a processing history of a data volume of the first storage system to the second storage system, and to transfer multiple processing histories collectively. The first storage system integrates histories of multiple write accesses included in the multiple processing histories to be collectively transferred, which are duplicatedly addressed on the volume for transfer.

Abstract: A computer management apparatus including a plurality of nodes, each including a processor and a storage device, and stores a countermeasure result table including a plurality of combinations of an anomaly detection rule, a countermeasure rule which is a countermeasure against an anomaly, and an effect indicating effectiveness of these rules, and the management apparatus includes: an anomaly detection unit that detects an anomaly of the computer system based on information acquired from the computer system and the anomaly detection rule; an execution unit that decides a countermeasure, at which the anomaly has been detected by the anomaly detection unit, on the basis of the detected anomaly, the countermeasure rule, and the effect indicating the effectiveness, and executes the decided countermeasure; and a countermeasure result information setting unit that evaluates a result of the countermeasure and records the result in the effect indicating the effectiveness in the countermeasure result table.

Abstract: A storage system and storage control method are provided in which a plurality of volumes to be processed by a storage control unit are distributed and evacuated in a normal storage control unit without recovering redundancy of the storage control unit having decreased redundancy, and the storage control unit itself having the decreased redundancy is deleted after the evacuating is completed, and thus reservation information processing resources for guaranteeing recoverability of the redundancy become unnecessary.

Abstract: A first storage system of a remote copy system includes a data volume, a journal volume, and a storage controller. When an operation is received from a first server system, based on the operation, the storage controller executes any of a work of storing the update content by the operation in the journal volume or a work of executing the operation when the operation is received.

Abstract: Dump data of a memory is allowed to be easily and appropriately managed. In a storage apparatus including a CPU, a DRAM, and a drive, the CPU executes storage processing to store data of the DRAM to be stored into the drive as dump data upon a failure occurrence in the storage apparatus. The CPU deduplicates the dump data in the storage processing or after storing the dump data into the drive. The CPU may execute deduplication processing between the dump data and other dump data stored in the drive or may execute deduplication processing within the data to be stored.

Abstract: Saving a capacity of an on-premises storage apparatus, a high access performance of the on-premises storage apparatus, and resuming an operation quickly and accurately by using data on a cloud when a resource in the on-premises fails are achieved. A processor provides a first volume which is a virtual volume, and configures a copy pair of the first volume and a second volume provided from another storage system. Write data to the first volume is transferred to the second volume via a network, based on the copy pair. The processor writes to the memory a part of data written to the second volume, and writes to the storage device the data written to the memory.

Abstract: In a storage system having a controller constructing a provision volume provided to a server system and an addition volume in which data to be stored in the provision volume is added and stored, when a provision volume copying instruction is received, the controller inserts a start marker indicating start time point of copying into address change history information and copies address conversion information of a provision volume while receiving update data to a provision volume from the server system, as address conversion information of a copy-destination volume. On the basis of a start marker of address change history information and history information, a change from start to completion of copying of the address conversion information of a copy-destination volume is reset to a state at the start time point of copying.

Abstract: A storage apparatus includes a processor and a memory. The processor provides a plurality of logical volumes each allowing input and output of data, and processes each data input to and output from a storage device via the logical volume. The processor acquires operational data associated with each of the plurality of logical volumes, and transmits the acquired operational data to a source of a operational data request. The processor adjusts, for each of the logical volumes, accuracy of the operational data to be acquired from each of the logical volumes, according to a status of each of the logical volumes.

Abstract: A failure in a main site is recovered by operating in the same operational environment as a sub site. A remote copy system includes: a first storage system providing a main site; and a second storage system providing a sub site. A storage controller stores data and an operation processed in the main site as a main site journal, sends the main site journal to the sub site for sequential processing, stores data and an operation processed in the sub site as a sub site journal after a failover to the sub site is performed, and cancels an unreflected operation that is not processed in the sub site after being stored in the main site journal prior to the failover in the main site and sequentially processes the sub site journal in the main site, when a failback to the main site is performed.

Abstract: A computer system includes at least one HCI node, and a high-order management infrastructure which is communicable with the HCI node, and acquires operation information of the HCI node for detecting abnormality in the computer unit. The HCI node generates an event notification table including a resource of the HCI node relevant to an event executed therein, and a type of influence of the event to the HCI node, and transmits the event notification table to the high-order management infrastructure. The operation information includes a load to the resource of the HCI node. The high-order management infrastructure detects abnormality using the operation information and the event notification table.

Abstract: The operational performance and the I/O performance of Snapshots in a storage system are balanced. In a storage system, meta information of data appended to a log structured area is composed of meta information of a first tier and meta information of a second tier which correlate location information of data in a logical volume and location information of data in the log structured area. When creating a snapshot of the logical volume, a data management unit creates, in the same meta information area as a replication source, a replication of the meta information of the first tier stored in a plurality of meta information areas assigned to a plurality of controllers. A data control unit accesses the data of the log structured area from the logical volume, and accesses the data of the log structured area from the snapshot.

Abstract: In a storage system, attributes of nodes are specified as first attribute nodes and second attribute nodes, the I/O processing in the nodes is executed as a plurality of processes including front-end I/O processing executed by any of the first attribute nodes and back-end I/O processing executed by the first and second attribute nodes having a storage device that stores data relating to the I/O processing.

Abstract: A storage system includes a storage drive that stores data and a plurality of storage apparatuses, each generating access data and writing data into the storage drive, and accessing data in the storage drive using the access data, and in a case of migrating the volume together with the access data between the storage apparatuses, one responsible for the write processing on the volume being migrated to a migration destination storage apparatus at a time of migration of the access data, and one responsible for the read processing on the volume being performed by a migration source storage apparatus using the access data, and the one responsible for the read processing being migrated to the migration destination storage apparatus after the access data is available for the migration destination storage apparatus.

Abstract: An inter-volume copy time is to be accurately predicted. An operation management system is configured to perform operation management on a storage device including a plurality of resources and a plurality of volumes. In the storage device, IO processing and copy processing are performed between a plurality of volume groups in which the plurality of volumes are collected. The operation management system includes a processor, and the processor is configured to predict an inter-pool copy speed between the plurality of volume groups belonging to a same resource pool in the storage device, and predict an inter-volume copy time based on the predicted inter-pool copy speed.