Hardware: Because data encryption is performed at the end of the write path, storage efficiency mechanisms are not impaired.
Software: Although Datrium Blanket Encryption is an end-to-end solution, it has been fully integrated into the Datrium DVX data services architecture. As a result none of the efficiency mechanisms (eg. deduplication and compression) are impaired.
Before encrypting the data, the Datrium DVX software computes fingerprints (cryptographic-strength identifiers) on the data. The fingerprints are later used to perform deduplication on the data. By computing the fingerprints on the pre-encrypted (or clear-text) data, Datrium DVX retains the ability to find and eliminate duplicate variably-sized groupings of blocks of data regardless of where the blocks of data are located.
The Datrium DVX software also performs compression on the clear-text data before the data is randomized by encryption and rendered incompressible. Thus, with Datrium Blanket Encryption the considerable benefits of de-duplication and compression are maintained.
Datrium, DVX [HCI]/188.8.131.52, x86
Data Encryption Efficiency Impact, Security, Data Services