MSEO CPU impact?
Please see : http://www.symantec.com/docs/HOWTO56061 - Encryption and NetBackup performance
Media Server Encryption Option (MSEO)
Data encryption (and compression) can be performed on the NetBackup media server, by means of the Media Server Encryption Option (MSEO).
Note the following:
-
In most cases, to avoid the need for additional tapes, you should compress the data before encrypting it. MSEO can both compress the data and encrypt it.
-
MSEO compression increases the amount of data that the media server must process in order to keep the tape drive streaming.
-
MSEO is usually most effective when only a limited amount of the backup data needs encryption.
-
The greater the amount of data to be encrypted, the greater the CPU load that is placed on the media server. If MSEO also compresses the data before encrypting it, the CPU demands are even greater. For example, to compress and encrypt 100 MB/second of data with a Solaris media server requires roughly an additional 8.7 GHz of CPU processing for MSEO.
For more information on MSEO performance, see "A guide to best practices when using the NetBackup Media Server Encryption Option:"
http://www.symantec.com/docs/TECH73132
-
