Abstract: A source remote copy configuration in a source storage system is migrated to a destination storage system as a destination remote copy configuration. The destination primary storage apparatus of the destination storage system defines a virtual volume mapped to the primary volume provided by the source primary storage apparatus which is a storage area of the virtual volume; takes over a first identifier of the primary volume to the virtual volume; transfers, when the virtual volume receives an access request, the access request to the source primary storage apparatus to write data in the primary volume; and takes over the first identifier from the virtual volume to another primary volume provided by the destination primary storage apparatus, after completion of copy of data from primary volume of the source primary storage apparatus into primary volume of the destination primary storage apparatus and secondary volume of the destination secondary storage apparatus.

Abstract: A source remote copy configuration in a source storage system is migrated to a destination storage system as a destination remote copy configuration. The destination primary storage apparatus of the destination storage system defines a virtual volume mapped to the primary volume provided by the source primary storage apparatus which is a storage area of the virtual volume; takes over a first identifier of the primary volume to the virtual volume; transfers, when the virtual volume receives an access request, the access request to the source primary storage apparatus to write data in the primary volume; and takes over the first identifier from the virtual volume to another primary volume provided by the destination primary storage apparatus, after completion of copy of data from primary volume of the source primary storage apparatus into primary volume of the destination primary storage apparatus and secondary volume of the destination secondary storage apparatus.

Abstract: A source remote copy configuration in a source storage system is migrated to a destination storage system as a destination remote copy configuration. The destination primary storage apparatus of the destination storage system defines a virtual volume mapped to the primary volume provided by the source primary storage apparatus which is a storage area of the virtual volume; takes over a first identifier of the primary volume to the virtual volume; transfers, when the virtual volume receives an access request, the access request to the source primary storage apparatus to write data in the primary volume; and takes over the first identifier from the virtual volume to another primary volume provided by the destination primary storage apparatus, after completion of copy of data from primary volume of the source primary storage apparatus into primary volume of the destination primary storage apparatus and secondary volume of the destination secondary storage apparatus.

Abstract: A source remote copy configuration in a source storage system is migrated to a destination storage system as a destination remote copy configuration. The destination primary storage apparatus of the destination storage system defines a virtual volume mapped to the primary volume provided by the source primary storage apparatus which is a storage area of the virtual volume; takes over a first identifier of the primary volume to the virtual volume; transfers, when the virtual volume receives an access request, the access request to the source primary storage apparatus to write data in the primary volume; and takes over the first identifier from the virtual volume to another primary volume provided by the destination primary storage apparatus, after completion of copy of data from primary volume of the source primary storage apparatus into primary volume of the destination primary storage apparatus and secondary volume of the destination secondary storage apparatus.

Abstract: A source remote copy configuration in a source storage system is migrated to a destination storage system as a destination remote copy configuration. The destination primary storage apparatus of the destination storage system defines a virtual volume mapped to the primary volume provided by the source primary storage apparatus which is a storage area of the virtual volume; takes over a first identifier of the primary volume to the virtual volume; transfers, when the virtual volume receives an access request, the access request to the source primary storage apparatus to write data in the primary volume; and takes over the first identifier from the virtual volume to another primary volume provided by the destination primary storage apparatus, after completion of copy of data from primary volume of the source primary storage apparatus into primary volume of the destination primary storage apparatus and secondary volume of the destination secondary storage apparatus.

Abstract: A source remote copy configuration in a source storage system is migrated to a destination storage system as a destination remote copy configuration. The destination primary storage apparatus of the destination storage system defines a virtual volume mapped to the primary volume provided by the source primary storage apparatus which is a storage area of the virtual volume; takes over a first identifier of the primary volume to the virtual volume; transfers, when the virtual volume receives an access request, the access request to the source primary storage apparatus to write data in the primary volume; and takes over the first identifier from the virtual volume to another primary volume provided by the destination primary storage apparatus, after completion of copy of data from primary volume of the source primary storage apparatus into primary volume of the destination primary storage apparatus and secondary volume of the destination secondary storage apparatus.

Abstract: A source remote copy configuration in a source storage system is migrated to a destination storage system as a destination remote copy configuration. The destination primary storage apparatus of the destination storage system defines a virtual volume mapped to the primary volume provided by the source primary storage apparatus which is a storage area of the virtual volume; takes over a first identifier of the primary volume to the virtual volume; transfers, when the virtual volume receives an access request, the access request to the source primary storage apparatus to write data in the primary volume; and takes over the first identifier from the virtual volume to another primary volume provided by the destination primary storage apparatus, after completion of copy of data from primary volume of the source primary storage apparatus into primary volume of the destination primary storage apparatus and secondary volume of the destination secondary storage apparatus.

Abstract: A source remote copy configuration in a source storage system is migrated to a destination storage system as a destination remote copy configuration. The destination primary storage apparatus of the destination storage system defines a virtual volume mapped to the primary volume provided by the source primary storage apparatus which is a storage area of the virtual volume; takes over a first identifier of the primary volume to the virtual volume; transfers, when the virtual volume receives an access request, the access request to the source primary storage apparatus to write data in the primary volume; and takes over the first identifier from the virtual volume to another primary volume provided by the destination primary storage apparatus, after completion of copy of data from primary volume of the source primary storage apparatus into primary volume of the destination primary storage apparatus and secondary volume of the destination secondary storage apparatus.

Abstract: An object is to efficiently set configurations of a storage apparatus. Provided is an information apparatus communicably coupled to a storage apparatus 10, which validates a script executed by the storage apparatus 10 for setting a configuration of the storage apparatus 10, the information apparatus generating configurations of the storage apparatus 10 when after each command described in a script is executed sequentially; and performing consistency validation on the script by determining whether or not the command described in the script is normally executable in a case the command is executed on an assumption that the storage apparatus 10 has the configuration immediately before the execution.

Abstract: An object is to efficiently set configurations of a storage apparatus. Provided is an information apparatus communicably coupled to a storage apparatus 10, which validates a script executed by the storage apparatus 10 for setting a configuration of the storage apparatus 10, the information apparatus generating configurations of the storage apparatus 10 when after each command described in a script is executed sequentially; and performing consistency validation on the script by determining whether or not the command described in the script is normally executable in a case the command is executed on an assumption that the storage apparatus 10 has the configuration immediately before the execution.

Abstract: Commands can be issued by being flexibly adjusted to each of an in-band method and an out-of-band method. A disk controller includes: a pseudo-logical volume provided independently from a substantial logical volume; a command analyzer for analyzing a command received by means of communication on the in-band method or the out-of-band method; and a special command processing unit for executing operation over the substantial logical volume which corresponds to the pseudo-logical volume, instead of executing operation over the pseudo-logical volume, if the command means an instruction to operate the pseudo-logical volume.

Abstract: A storage system whereby all managers of the storage system can easily collect the history data of the manager of each partition. The storage system is designed such that the memory resources within the system are managed by a system manager while partitions of the memory resources are managed by partition managers assigned for every partition unit. The storage system is provided with management modules that change the configuration of the memory resources corresponding to the content set by the system manager or partition manager, a history data management module that creates history data correlating the identifier of the partition unit that has undergone modification of the configuration of the memory resources, the setting content, and the identification data of the manager, and a history data storage unit that stores the history data.

Abstract: The present invention partitions a cache region of a storage subsystem for each user and prevents interference between user-dedicated regions. A plurality of CLPR can be established within the storage subsystem. A CLPR is a user-dedicated region that can be used by partitioning the cache region of a cache memory. Management information required to manage the data stored in the cache memory is allocated to each CLPR in accordance with the attribute of the segment or slot. The clean queue and clean counter, which manage the segments in a clean state, are provided in each CLPR. The dirty queue and dirty counter are used jointly by all the CLPR. The free queue, classification queue, and BIND queue are applied jointly to all the CLPR, only the counters being provided in each CLPR.

Abstract: The present invention is a storage apparatus including a disk device having a storage medium for storing data, a controller unit configured to control the disk device, a setting unit configured to accept a setting operation for the disk device performed by a user and configure the setting according to the setting operation, a log information collection unit for collecting, as log information, the setting operation accepted by the setting unit, and a log information analysis unit for performing predetermined analysis processing on the setting operation based on the log information collected by the log information collection unit. The storage apparatus prevents unauthenticated operations by collecting and analyzing the log information about the setting operations, and achieves secure and smooth management.

Abstract: The expansion of a mapping table with additional mapping information involved in the access to virtual volumes is prevented and so a search in the mapping information within a valid time period is ensured, thereby preventing degradation of system performance. A storage apparatus, which defines virtual volumes to which storage areas are dynamically allocated, has a data migration function to migrate data between the virtual volumes and real volumes. With the data migration function, the mapping information for the migrated data is deleted from the mapping table, and accordingly, the size of the mapping table can be limited.

Abstract: A method for performing a system reconfiguration of a storage system includes displaying a configuration window visually showing a configuration of a plurality of components in the storage system within an operation screen. An input area is displayed within the operation screen, the input area being provided for entering one or more components to be reconfigured. A performance window is displayed within the operation screen, the preference window providing bandwidth utilization information of one or more of the components in the storage system. The configuration window, performance window, and the input area are all viewable at the same time without activating another operation screen.

Abstract: A storage system whereby all managers of the storage system can easily collect the history data of the manager of each partition. The storage system is designed such that the memory resources within the system are managed by a system manager while partitions of the memory resources are managed by partition managers assigned for every partition unit. The storage system is provided with management modules that change the configuration of the memory resources corresponding to the content set by the system manager or partition manager, a history data management module that creates history data correlating the identifier of the partition unit that has undergone modification of the configuration of the memory resources, the setting content, and the identification data of the manager, and a history data storage unit that stores the history data.

Abstract: The expansion of a mapping table with additional mapping information involved in the access to virtual volumes is prevented and so a search in the mapping information within a valid time period is ensured, thereby preventing degradation of system performance. A storage apparatus, which defines virtual volumes to which storage areas are dynamically allocated, has a data migration function to migrate data between the virtual volumes and real volumes. With the data migration function, the mapping information for the migrated data is deleted from the mapping table, and accordingly, the size of the mapping table can be limited.

Abstract: A storage system whereby all managers of the storage system can easily collect the history data of the manager of each partition. The storage system is designed such that the memory resources within the system are managed by a system manager while partitions of the memory resources are managed by partition managers assigned for every partition unit. The storage system is provided with management modules that change the configuration of the memory resources corresponding to the content set by the system manager or partition manager, a history data management module that creates history data correlating the identifier of the partition unit that has undergone modification of the configuration of the memory resources, the setting content, and the identification data of the manager, and a history data storage unit that stores the history data.

Abstract: A storage apparatus is capable of relocating volumes accurately even when a plurality of storage apparatuses are connected. The storage apparatus comprises an external connection function for recognizing an external logical volume set on a physical storage device as a logical volume inside the storage apparatus, a storage control device with a volume relocation function for relocating the logical volumes based on set conditions, and a storage unit with a plurality of physical storage devices. When the host sends a read request to the logical volume set on the physical storage device of the storage unit, the volume relocation function generates internally the same read request to the external storage volume set on the physical storage device in the external storage apparatus and relocates volumes based on the monitor information obtained by monitoring responses to the read request.