INFORMATION SYSTEM, DATA TRANSFER METHOD AND DATA PROTECTION METHOD
First Claim
1. An information system comprising:
- a first computer;
a first storage apparatus coupled to the first computer and including a first volume;
a second storage apparatus coupled to the first computer and the first storage apparatus, and including a second volume; and
a third storage apparatus coupled to the first storage apparatus and including a third volume,wherein the first storage apparatus and the second storage apparatus execute remote copy of copying data storage in the first volume to the second volume, andwherein the first storage apparatus and the third storage apparatus execute remote copy of copying data stored in the first volume to the third volume.
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Accused Products
Abstract
Availability of an information system including a storage system that performs remote copy between two or more storage apparatuses and a host computer using such storage system is improved. A third storage apparatus including a third volume is coupled to a first storage apparatus, a fourth storage apparatus including a fourth volume is coupled to a second storage apparatus, the first and third storage apparatuses perform remote copy of copying data stored in a first volume to the third volume, the first and second storage apparatuses perform remote copy of copying data stored in the first volume to a second volume, and the third and fourth storage apparatuses perform remote copy of copying data stored in the third volume to the fourth volume.
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Citations
15 Claims
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1. An information system comprising:
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a first computer; a first storage apparatus coupled to the first computer and including a first volume; a second storage apparatus coupled to the first computer and the first storage apparatus, and including a second volume; and a third storage apparatus coupled to the first storage apparatus and including a third volume, wherein the first storage apparatus and the second storage apparatus execute remote copy of copying data storage in the first volume to the second volume, and wherein the first storage apparatus and the third storage apparatus execute remote copy of copying data stored in the first volume to the third volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A data protection method in an information system having a first computer, a first storage apparatus coupled to said first computer and including a first volume, and a second storage apparatus coupled to said first storage apparatus and said first computer and including a second volume, said data protection method comprising:
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a first step of connecting a third storage apparatus including a third volume to said first storage apparatus; a second step of said first and second storage apparatuses executing remote copy of copying data stored in said first volume to said second volume; and a third step of said first and third storage apparatuses executing remote copy of copying data stored in said first volume to said third volume. - View Dependent Claims (15)
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Specification