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IBM XIV Storage System Copy Services and Migration by Stephen Solewin, Markus Oscheka, Itzhack Goldberg, Roman Fridli, Roger Eriksson, David Denny, Dietmar Dausner, Bertrand Dufrasne

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Remote mirroring
The remote mirroring function of the XIV Storage System provides a real-time copy between two or more XIV storage systems supported over Fibre Channel (FC) or iSCSI links. This feature provides a method to protect data from site failures.
Remote mirroring can be a synchronous copy solution where a write operation is completed on both copies (local and remote sites) before an acknowledgement is returned to the host that issued the write (see Chapter 5, “Synchronous Remote Mirroring” on page 113). This type of remote mirroring is ...

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