Data reallocation among storage systems
First Claim
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1. A computer system comprising:
- a computer;
a plurality of storage systems including first storage device and a second storage device, a network coupled with the computer and the first storage device and the second storage device;
wherein the computer is configured to copy data stored in the first storage device to the second storage device, wherein the computer is configured to change the destination of an access request designating the first storage device to be the second storage device, after data stored in the first storage device is copied to the second storage device.
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Abstract
The present invention provides techniques, including a method and system, for relocating data between storage systems. In one embodiment of the present invention a host collects usage information from a plurality of storage systems, and determines the relocation destination LU for data stored in the LU to be relocated. The host alters an LU logical position name table that determines matching between the logical position names of data and LUs. It also carries out data relocation between storage subsystems by shifting data stored in an origin LU to be relocated to a destination LU. In another embodiment relocation of files is provided.
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Citations
6 Claims
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1. A computer system comprising:
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a computer;
a plurality of storage systems including first storage device and a second storage device, a network coupled with the computer and the first storage device and the second storage device;
wherein the computer is configured to copy data stored in the first storage device to the second storage device, wherein the computer is configured to change the destination of an access request designating the first storage device to be the second storage device, after data stored in the first storage device is copied to the second storage device. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification