Overview of Storage Encryption concepts, functionality, benefits, and limitations.
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What Storage Encryption is
Storage Encryption is an optional feature that you can enable for additional data protection. It is available on certain supported storage controllers and disk shelves that contain disks with built-in encryption functionality.
How Storage Encryption works
Storage Encryption occurs at the firmware level of disks that are equipped with special firmware and hardware to provide the additional security, also known as self-encrypting disks (SEDs). SEDs can operate either in unprotected mode like regular disks, or in protected mode requiring authentication after the power-on process.
Disk operations with SEDs
Most of the disk-related operations are identical for SEDs and regular disks.
Benefits of using Storage Encryption
There are several scenarios where using Storage Encryption provides significant benefits by protecting data from unauthorized access when disks removed from a storage system have fallen into the wrong hands.
