Backup Encryption within Netbackup is a real performance killer!!!!

We tested this on a fairly large server.
Standard file level backup, using 10 LTO-3 tape drives and average speed was 
80MB per second per tape drive.

Next, turn on backup encryption for the exact same backup policy, start the 
backup to the same 10 LTO-3 tape drives and we got an average speed of 8MB (not 
a typo here folks....Eight) per second per tape drive.

It's best to go with LTO-4 tape drives and do hardware encryption of the backup 
performance hit will smack you really hard.  [Shocked]

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