The customer storage system needs to be upgraded, and one existing virtual machine is bound to the host. Which of the following technologies is recommended to upgrade the storage system online?

The customer storage system needs to be upgraded, and one existing virtual machine is bound to the host. Which of the following technologies is recommended to upgrade the storage system online?
A . Virtual machine hot migration changes the host.
B . Virtual machine hot migration changes the host and data storage.
C . Unable to meet demand.
D . Virtual machine hot migration to data storage.

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Answer: D