Information processing system and access control method
First Claim
1. An information processing system comprising:
- a plurality of storage devices;
a plurality of data access devices; and
a first processor toselect, when a first data access device permitted to access data in a first storage device fails, a second data access device other than the first data access device, the first data access device and the second access device being included in the plurality of data access devices, the first storage device being included in the plurality of storage devices,permit the second data access device to access data in the first storage device, andupdate correspondence information, which indicates the first data access device as a transfer destination of a request to access first data in the first storage device, to indicate the second data access device as the transfer destination so that a disk connection processing connects the second access device with the first storage device,wherein the request to access the first data is transferred to the second data access device according to the update of the correspondence information, the first data is relayed to the second data access device based on the transfer of the request to the second data access device, and the request is one of a read operation and a write operation with respect to the first data.
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Accused Products
Abstract
An information processing system includes a plurality of storage devices, a plurality of data access devices, and a first processor. The first processor selects, when a first data access device permitted to access data in a first storage device fails, a second data access device other than the first data access device. The first data access device is included in the plurality of data access devices. The first storage device is included in the plurality of storage devices. The second data access device is included in the plurality of data access devices. The first processor permits the second data access device to access data in the first storage device. The first processor updates correspondence information, which indicates the first data access device as a transfer destination of a request to access first data in the first storage device, to indicate the second data access device as the transfer destination.
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Citations
10 Claims
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1. An information processing system comprising:
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a plurality of storage devices; a plurality of data access devices; and a first processor to select, when a first data access device permitted to access data in a first storage device fails, a second data access device other than the first data access device, the first data access device and the second access device being included in the plurality of data access devices, the first storage device being included in the plurality of storage devices, permit the second data access device to access data in the first storage device, and update correspondence information, which indicates the first data access device as a transfer destination of a request to access first data in the first storage device, to indicate the second data access device as the transfer destination so that a disk connection processing connects the second access device with the first storage device, wherein the request to access the first data is transferred to the second data access device according to the update of the correspondence information, the first data is relayed to the second data access device based on the transfer of the request to the second data access device, and the request is one of a read operation and a write operation with respect to the first data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An access control method, comprising:
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selecting by a computer, when a first data access device permitted to access data in a first storage device fails, a second data access device other than the first data access device, the first data access device and the second access device being included in a plurality of data access devices, the first storage device being included in a plurality of storage devices; permitting the second data access device to access data in the first storage device; and updating correspondence information, which indicates the first data access device as a transfer destination of a request to access first data in the first storage device, to indicate the second data access device as the transfer destination so that a disk connection processing connects the second access device with the first storage device, wherein the request to access the first data is transferred to the second data access device according to the update of the correspondence information, the first data is relayed to the second data access device based on the transfer of the request, and the request is one of a read operation and a write operation with respect to the first data.
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10. A non-transitory computer-readable recording medium storing a program that causes a computer to execute a procedure, the procedure comprising:
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selecting, when a first data access device permitted to access data in a first storage device fails, a second data access device other than the first data access device, the first data access device and the second access device being included in a plurality of data access devices, the first storage device being included in a plurality of storage devices; permitting the second data access device to access data in the first storage device; and updating correspondence information, which indicates the first data access device as a transfer destination of a request to access first data in the first storage device, to indicate the second data access device as the transfer destination so that a disk connection processing connects the second access device with the first storage device, wherein the request to access the first data is transferred to the second data access device according to the update of the correspondence information, the first data is relayed to the second data access device based on the transfer of the request, and the request is one of a read operation and a write operation with respect to the first data.
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Specification