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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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Snapshots
The XIV Storage System has a rich set of copy functions suited for various data protection scenarios, which enables clients to enhance their business continuance, data migration, and online backup solutions. This chapter provides an overview of the snapshot function for the XIV product.
A snapshot is a point-in-time copy of a volume’s data. The XIV snapshot is based on several innovative technologies to ensure minimal degradation of or impact on system performance. Snapshots make use of pointers and do not necessarily copy all the data ...

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