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US 7,925,832 B2Granted
Volume providing system calling two processes executing the same program code and exchanging information between the two processes
AssigneeHitachi, Ltd.
InventorKenichi Miki
Life of this patent
Estimating the term…
Abstract
A host computer HA1 or the like is provided with a target program 3 that receives the provision of logical volumes 212, a volume interface program 12A that provides an interface for the logical volumes 212 to the target program 3, and a volume filter program 12B that selects one logical volume from the copying source volume 212A and copying destination volume 212B, and provides the selected logical volume to the target program 3 via the volume interface program 12A.
Claims8
A computer configured to be coupled to a storage system comprising:
- a memory storing pair management information which indicates a copy pair including a first volume and a second volume in the storage system;
- and
- a processor configured to send a copy command to copy between the first volume and the second volume,
- wherein the memory stores a first driver which relates to the first volume and a second driver which relates to the second volume, the first driver set as an I/O issuing driver and the second driver set as a driver which communicates with an application,
- wherein when the second driver receives an I/O request, the second driver sends the I/O request to the first driver, and the first driver issues the I/O request to the first volume, and
- wherein when the first driver receives a response to the I/O request, the first driver sends the response to the second driver, and the second driver sends the response to the application.
3 more elements
A computer system comprising:
- a storage system which includes a plurality of disks which forms a first volume and a second volume;
- and
- a host computer including a memory storing an application and pair management information which indicates a copy pair including the first volume and the second volume, and a processor sending a copy command to the storage system to copy between the first volume and the second volume,
- wherein the memory stores a first driver which relates to the first volume and a second driver which relates to the second volume, the first driver set as I/O issuing driver and the second driver set as a driver which communicates with the application,
- wherein when the second driver receives an I/O request from the application, the second driver sends the I/O request to the first driver, and the first driver issues the I/O request to the first volume in the storage system, and
- wherein when the first driver receives a response to the I/O request, the first driver sends the response to the second driver, and the second driver sends the response to the application.
3 more elements
Dependencies are inferred from the claim text.