Date rate when software encryption turn on On LTO4

[dipakce]

Dear all,

I have LTO 4 tapes , if turn on  software encryption from Backup exc  On LTO4 ...

does it effect my total job time( do  i get delay in Writing speed)

[pkh · Accepted solution]

Yes. Definitely, turning on encryption will slow down the job.  You should turn on hardware encryption which will slow down the job less than software encryption.

[VJware]

In software encryption, the data is encrypted on the remote server & then transferred to the Backup Exec media server which in turn writes to the destination device, whereas in hardware encryption the data is first written to the destination device & then encrypted.

Encryption does add overhead to the total time taken, so test both options (if you can) to see if you get variance in throughput or not.

[dipakce]

PKH & VJware,

Thanks for replying on my post.

Can you tell how much delay i get in %  in compare to normal job vs encrypted job?

[pkh]

That depends on your hardware. You would have to test