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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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Volume copy
One of the powerful software features included with the XIV Storage System is volume copy. A volume copy is different from a snapshot because a snapshot creates a point in time copy that is a child device of the original source volume, whereas a volume copy is a point in time copy that is independent of its source volume. This effectively makes it similar to a traditional volume copy, but combined with the sophisticated use of metadata that is found in XIV.
Volume copy’s main advantage over a snapshot is that it is independent and would ...

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