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IBM XIV Storage System Copy Services and Migration by Jim Sedgwick, Hank Sautter, Guenter Rebmann, Christian Burns, 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 write operations are completed on both copies (local and remote sites) before they are considered to be complete (see Chapter 4, “Synchronous remote mirroring” on page 107). This type of remote mirroring is normally used for short distances ...

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