Software encryption and hardware compression

Last post 05-22-2019, 2:02 AM by Wwong. 1 replies.
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  • Software encryption and hardware compression
    Posted: 05-21-2019, 1:11 PM

    Im using software encryption on my aux copies that write to tape.  I noticed that as a result the tapes get no compression at all.  Is this expected behavior?  If not, any ideas on how to increase compression on the tapes.

  • Re: Software encryption and hardware compression
    Posted: 05-22-2019, 2:02 AM

    Hi CGS

    While using encryption, compression will be impacted:

    • By using encryption when performing backup operations, you can effectively randomize the data. This means that the compression algorithms will not be as effective when compressing the encrypted data. So, when the data gets written to the media, there will be a noticeable difference in the compression ratio.
    • Documentation - http://documentation.commvault.com/commvault/v11/article?p=7866.htm
    Regards
    Winston 
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