Abstract: An example is a method of controlling a storage system for providing a virtual storage apparatus that includes virtual storage resources associated with real storage resources of real storage apparatus. It includes receiving a virtual storage resource control command of a predetermined type specifying a first virtual storage resource in the virtual storage apparatus and a second virtual storage resource associated with the first virtual storage resource; referring to management information for managing association relations between the virtual storage resources and the real storage resources, to identify a first real storage resource associated with the first virtual storage resource and a first real storage apparatus including the first real storage resource; and selecting a second real storage resource associated with the second virtual storage resource from real storage resources within the first real storage apparatus, or creating the second real storage resource within the first real 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 computerized data storage system includes at least one storage device including a nonvolatile writable medium; a cache memory and a data management controller and a storage port. The storage port is operable to receive a request to read data, and, in response to the request to read data, to send the data stored in the data storing area of the cache memory. The storage port is further operable to receive a request to write data, and, in response to the request to write data, to send the write data to the data storing area of the cache memory. The storage system further includes a thin provisioning controller operable to provide a virtual volume, and a capacity pool. The storage system further includes a data compression controller and a data decompression controller.

Abstract: Exemplary embodiments provide improvement of deduplication efficiency for hierarchical storage systems. In one embodiment, a storage system comprises a storage controller; and a plurality of first volumes and a plurality of external volumes which are configured to be mounted to external devices. The storage controller controls to store related data which are derived from one of the plurality of first volumes in a first external volume of the plurality of external volumes. In another embodiment, the storage controller receives object data from a server and allocates the object data to the plurality of pool volumes. The plurality of pool volumes include a plurality of external volumes which are configured to be mounted to external devices. The storage controller controls to store the object data to the plurality of pool volumes based on object allocation information received from a backup server.

Abstract: An exemplary storage system according to the invention includes a first physical storage apparatus providing a first real volume and a second physical storage apparatus providing a second real volume to form a copy pair with the first real volume. The first physical storage apparatus provides a first host with a first storage identifier and a first volume identifier for the first host to access the first real volume. The second physical storage apparatus provides a second host with at least a part of a first virtual storage apparatus including a first virtual volume allocated the second real volume. The second physical storage apparatus assigns the first volume identifier to the first virtual volume and the first storage identifier to the first virtual storage apparatus.

Abstract: A storage system includes a first storage apparatus including a first logical volume and a second storage apparatus including a second logical volume. The first and second logical volumes are set as a High Availability pair and associated with a virtual volume. When receiving a write request to the virtual volume, the storage system manages storage area in the first logical volume regarding to the write request as storage area during data duplication, writes data in duplicate, in order from the first logical volume to the second logical volume. When receiving a read request to the virtual volume, the first storage apparatus waits for completion of the data duplication and reads data from the first logical volume if the storage area is during the data duplication, and the first storage apparatus reads data from the first logical volume if the storage area is not during the data duplication.

Abstract: A cell-lysate extract based assay reagent for detecting quorum sensing signals is generally provided, along with methods of making and using the same. The assay reagent generally includes a cell-lysate extract formed from a biosensor bacterium (e.g., Agrobacterium tumefaciens NTL4 (pCF218)(pCF372)) and a detecting substrate (e.g., an absorbance-based or luminescence-based substrate). The cell-lysate extract can be prepared by (1) disrupting the cell membranes of the biosensor bacterium to release the cellular components into a solution, (2) centrifuging the resulting solution, and (3) removing the resulting supernatant solution.

Abstract: A storage system includes a first storage apparatus including a first logical volume and a second storage apparatus including a second logical volume. The first and second logical volumes are set as a High Availability pair and associated with a virtual volume. When receiving a write request to the virtual volume, the storage system manages storage area in the first logical volume regarding to the write request as storage area during data duplication, writes data in duplicate, in order from the first logical volume to the second logical volume. When receiving a read request to the virtual volume, the first storage apparatus waits for completion of the data duplication and reads data from the first logical volume if the storage area is during the data duplication, and the first storage apparatus reads data from the first logical volume if the storage area is not during the data duplication.

Abstract: A method for controlling data for a storage system comprises: receiving a write input/output (I/O) command of a data from a host computer, the write I/O command including an application ID identifying an application operating on the host computer which sends the write I/O request; maintaining a record of a relation between the application ID in the write I/O command and a storage location of the data to be written in a first volume of the storage system; determining, based on the application ID, whether a data transfer function between the first volume and a second storage volume is to be performed on the data beyond writing the data to the storage location in the first volume; and if the data transfer function is to be performed on the data, then performing the data transfer function on the data to the second volume.

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 computerized data storage system includes at least one storage device including a nonvolatile writable medium; a cache memory and a data management controller and a storage port. The storage port is operable to receive a request to read data, and, in response to the request to read data, to send the data stored in the data storing area of the cache memory. The storage port is further operable to receive a request to write data, and, in response to the request to write data, to send the write data to the data storing area of the cache memory. The storage system further includes a thin provisioning controller operable to provide a virtual volume, and a capacity pool. The storage system further includes a data compression controller and a data decompression controller.

Abstract: An example is a method of controlling a storage system for providing a virtual storage apparatus that includes virtual storage resources associated with real storage resources of real storage apparatus. It includes receiving a virtual storage resource control command of a predetermined type specifying a first virtual storage resource in the virtual storage apparatus and a second virtual storage resource associated with the first virtual storage resource; referring to management information for managing association relations between the virtual storage resources and the real storage resources, to identify a first real storage resource associated with the first virtual storage resource and a first real storage apparatus including the first real storage resource; and selecting a second real storage resource associated with the second virtual storage resource from real storage resources within the first real storage apparatus, or creating the second real storage resource within the first real storage apparatus.

Abstract: An example of the present invention is a storage system comprising a first real storage apparatus including a plurality of real resources. The first real storage apparatus includes: real resource groups allocated to a plurality of virtual storage apparatuses; first management information for associating virtual resource identifiers individually assigned to real resources in a namespace independently defined for each of the plurality of virtual storage apparatuses with real resource identifiers individually assigned to the real resources in a namespace defined for the first real storage apparatus; and a controller for receiving a command including a designation with a virtual resource identifier, converting the virtual resource identifier in the command into a real resource identifier with reference to the first management information, and processing the command with the converted real resource identifier.

Abstract: Exemplary embodiments of the invention provide a distribution design for fast RAID rebuild architecture that avoids the deterioration of the availability/reliability in the distribution architecture. According to one aspect of the invention, a storage system comprises: a data storage unit including a plurality of storage devices; a storage controller including a processor, a memory, and a controller for controlling data transfer between the memory and corresponding storage devices in the data storage unit; and an internal network coupled between the storage controller and the storage devices. Based on loads of the processor of the storage controller and the internal network, the storage controller controls to limit a number of redundant storage devices over which to distribute a write data.

Abstract: A storage system including: a controller; and, a plurality of physical storage devices coupled to the controller and constituting a RAID group; wherein the controller provides one or more logical volumes belonging to the RAID group, each of the one or more logical volumes having a plurality of storage areas; and one or more virtual volumes, wherein, when receiving a write request to a virtual volume of the one or more virtual volumes, the controller is configured to: allocate a storage area in a logical volume to the virtual volume, as an allocated storage area, where reliability of the storage area is used as a criterion in a selection of the storage area for allocation to the virtual volume; and write data to the allocated storage area, wherein, the controller is configured to selectively perform a RAID allocation process to a storage area allocated to a virtual volume.

Abstract: A system comprising a plurality of storage systems, which uses storage devices of multiple levels of reliability. The reliability as a whole system is increased by keeping the error code for the relatively low reliability storage disks in the relatively high reliability storage system. The error code is calculated using hash functions and the value is used to compare with the hash value of the data read from the relatively low reliability storage disks.

Abstract: A system comprising a plurality of storage systems, which uses storage devices of multiple levels of reliability. The reliability as a whole system is increased by keeping the error code for the relatively low reliability storage disks in the relatively high reliability storage system. The error code is calculated using hash functions and the value is used to compare with the hash value of the data read from the relatively low reliability storage disks.

Abstract: The present invention relates to executing data compression based on the used capacities of real pools. The present storage subsystem stores a definition information regarding conditions of starting data compression and ending data compression defined via usage rates of a real pool as physical area, wherein if the usage rate of the real pool satisfies the condition for starting compression, the compression processing is started, and if the usage rate satisfies the condition for ending compression, the compression processing is ended.

Abstract: The local storage performs remote copy to the remote storage. For low traffic failback remote copy, the remote storage performs a delta copy to the local storage, the delta being the difference between the remote storage and local storage. The local storage backs up snapshot data. The remote storage resolves the difference of the snapshot of the local storage and the remote storage. The difference resolution method can take one of several approaches. First, the system informs the timing of snapshot of the local storage to the remote storage and records the accessed area of the data. Second, the system informs the timing of snapshot of the local storage to the remote storage, and the remote storage makes a snapshot and compares the snapshot and remote copied data. Third, the system compares the local data and remote copy data with hashed data.