单选题A customer has 4 EXP5000 expansion enclosures attached to an IBM System Storage DS5100 intheir production environment， and the same configuration in their disaster recovery environment.The customer removes the drives from the production environment and

A customer has 4 EXP5000 expansion enclosures attached to an IBM System Storage DS5100 intheir production environment， and the same configuration in their disaster recovery environment.The customer removes the drives from the production environment and ships them to the disasterrecovery facility. What IBM technology feature gives the customer the ability to migrate drives fromone DS5000 to another DS5000 with data intact？（）