Duplication, performance of "bpdm.exe"...

As a real simple test, backup some data to a basic disk STU, then duplicate that, how fast is it ?

1: We had a in-house Linux admin to look at our setup. And this was his advice

2: You can see if hyper-threading is enabled in the BIOS. You enable/disable in BIOS as well.

Regarding the use of swap space set 

vm.swappiness = 1 in /etc/sysctl.conf

Explained here : https://lonesysadmin.net/2013/12/11/adjust-vm-swappiness-avoid-unneeded-disk-io/

I would increase NUMBER_DATA_BUFFERS to 128 or 256

MSDP encryption is documented in the deduplication guide

http://www.symantec.com/docs/DOC6466

Page 34. As I read it, its Netbackup that does the encryption/decryption. But Netbackup may very well uses library call to other modules in the OS. The manual say "Deduplication uses the Blowfish algorithm for encryption"

strace can do it - but you need kernel skills in decoding the output.

http://en.wikipedia.org/wiki/Strace