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IBM DS8870 Copy Services for Open Systems by Bertrand Dufrasne, Sherri Brunson, Don Skilton, Warren Stanley, Alexander Warmuth, Mark Wells

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Thin provisioning and Copy Services considerations
This chapter describes the impact of thin-provisioned volumes on different Copy Services scenarios, such as FlashCopy, Metro Mirror, Global Copy, Global Mirror, and Metro/Global Mirror.
36.1 Thin provisioning and Copy Services considerations
Thin provisioning and Copy Services with thin-provisioned Extent-Space-Efficient (ESE) volumes is supported by fixed block (FB) volumes in Open Systems environments only.
 
Thin provisioning support: Thin-provisioned (ESE) volumes are not supported by count ...

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