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To understand how the Rapid Data Locking (RDL) feature fits in, it helps to know how Data-At-Rest Encryption works on the Pure Storage FlashArray device. For information about Data-At-Rest Encryption, refer to the wp-flasharray-data-security-and-compliance.pdf document, which is contained in the Pure Storage FlashArray folder on SharePoint.

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Rapid Data Locking (RDL)

Some environments require external key management to lock down a forward-deployed array. The Pure Storage FlashArray KMIP RDL solution enables you to use the KMES Series 3 for this purpose.

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KMIP RDL

With KMIP RDL, a secondary user-controllable key is introduced, enabling you to unlock the array flash modules. The KMIP keys are remotely accessed from a KMIP server, such as KMES Series 3. Without access to the server, the flash modules cannot be unlocked on power-on.
You can enable RDL during installation or at any time thereafter, and it remains enabled permanently. It applies to all of the array SSDs, including those added afterward.