CTE-Efficient Storage for Linux

Storage arrays offer features such as compression and deduplication for storage efficiency. They also provide simplistic encryption that fails to deliver the requisite levels of security. CipherTrust Transparent Encryption (CTE) offers a much higher level of security. However, in deployments where storage arrays receive encrypted data streams from hosts protected by a CTE instance (protected hosts), the encrypted data streams make the efficiency of storage array systems ineffective. This is because every block written by CTE is different resulting in zero deduplication and compression on these blocks.

CTE offers CTE-Efficient Storage as the solution to the storage efficiency challenge in storage arrays on Linux.

This section contains the following topics.

• Introduction to CTE-Efficient Storage

• Guarding an Efficient Storage Device on Linux

• Guarding a CTE-Efficient Storage Device with Multiple IO Paths on Linux

• Linux System and ES GuardPoint Administration

• Changing the Encryption Key on Linux ESG Devices

• Resizing Guarded Efficient Storage Devices

• Use Cases involving Efficient Storage GuardPoints

• Alerts and Errors on Linux