Encryption
The Storwize V7000 Gen2 provides optional encryption of data at rest functionality, which protects against the potential exposure of sensitive user data and user metadata that is stored on discarded, lost, or stolen storage devices. Encryption can only be enabled and configured on enclosures that support encryption.
Be aware that the IBM Storwize V7000 Gen1 does not support encryption.
12.1 Encryption using the Storwize V7000 Gen2
What does data at rest mean:
Encryption is the process of encoding data so that only authorized parties ...

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