HP-UX Encrypted Volume and File System Performance and Tuning

Sequential reads show the same results – EVFS performs essentially the same for throughput and CPU
utilization for both keys lengths.
For these test cases, EVFS encryption security can be configured to comply with stronger
governmental or industry standards for encryption without sacrificing performance. It is strongly
recommended to test this configuration in your own environment before configuring EVFS with the
longer key length.
Note: Other EVFS Encryption Keys
EVFS also allows for configuring the public/private key pair
and passphrase keys for additional security with longer
lengths. These keys do not affect EVFS performance to any
great degree because they are used at startup and
configuration, and not for the bulk processing of reading
and writing data.