Pure Storage, Inc.
Data protection in a storage system

Abstract:

In a storage system that includes a plurality of NVMe SSDs, data protection may be carried out by: for each of the plurality of NVMe SSDs, encrypting a device key using a master secret, wherein the device key, when not encrypted, is used to encrypt and decrypt data in one or more namespaces on the NVMe SSD; generating a plurality of shares from the master secret; and storing a separate share of the plurality of shares in a namespace prohibited from encryption on each NVMe SSD.