COMPUTER SYSTEM AND MANAGEMENT METHOD FOR COMPUTER
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United States of America Patent
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Jun 1, 2015
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Jun 1, 2015
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Abstract
A configuration aimed at reducing loads on storage apparatuses at a restoration site is provided in an environment where there are differences in the performance and capacity of the storage apparatuses between a primary site and the restoration site. Second volumes which form a remote copy with first volumes provided to a host at a primary site are located in a storage apparatus at the restoration site, which can satisfy the performance requirement upon failure of the first volumes, on the basis of performance information and available capacity information. A volume group is configured for each of the second volumes located at one storage apparatus at the restoration site and the first volumes; and an extended volume group including a plurality of second volumes, in which data is replicated and recorded in a write order to write the data to the first volumes, and their first volumes is set.
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