COMPUTER SYSTEM AND CONTROL METHOD FOR THE SAME
First Claim
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1. A computer system with a plurality of storage systems coupled to each other via a network, the computer system comprising:
- a first storage system; and
a second storage system;
wherein the first storage system includes a first computer for operating a first virtual machine and stores data of the first virtual machine in a first memory unit that is hierarchized;
wherein the second storage system includes a second computer for operating a second virtual machine and stores data of the second virtual machine in a second memory unit that is hierarchized; and
wherein when the first computer migrates the first virtual machine to the second computer, the second computer stores data of the first virtual machine and data of the second virtual machine in the second memory unit.
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Abstract
A computer system with a plurality of storage systems connected to each other via a network, each storage system including a virtual machine whose data is stored in hierarchized storage areas. When a virtual machine of a first storage system is migrated from the first storage system to a second storage system, the second storage system stores data of the virtual machine of the first storage system as well as data of its own virtual machine, in the hierarchized storage areas in the second storage system.
37 Citations
13 Claims
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1. A computer system with a plurality of storage systems coupled to each other via a network, the computer system comprising:
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a first storage system; and a second storage system; wherein the first storage system includes a first computer for operating a first virtual machine and stores data of the first virtual machine in a first memory unit that is hierarchized; wherein the second storage system includes a second computer for operating a second virtual machine and stores data of the second virtual machine in a second memory unit that is hierarchized; and wherein when the first computer migrates the first virtual machine to the second computer, the second computer stores data of the first virtual machine and data of the second virtual machine in the second memory unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A data storage control method for a computer system with a plurality of storage systems connected to each other via a network, each of the plurality of storage systems having a virtual machine whose data is stored in hierarchized storage areas,
wherein when a virtual machine of a first storage system is migrated from the first storage system to a second storage system, the second storage system stores data of the virtual machine of the first storage system as well as data of its own virtual machine in the hierarchized storage areas in the second storage system.
Specification