Re: [Networker] Encryption Questions
2009-03-17 13:20:05
On Tue, Mar 17, 2009 at 11:59:33AM -0400, psoni wrote:
> We have LTO-3 tapes (400/800 GB) in the library with active compression but
> the tape with enrypted data is reaching its full capacity ~ 400 GB
>
> NO COMPRESSION ??
Correct. Encrypted data cannot be compressed. You may be able to use
client-side compression to compress first, then encrypt. But you cannot
encrypt first then compress.
> Does the additional capacity due to encryption remain hidden ?
Compression works by recognizing patterns in the data that can be
removed. Encryption works by removing all patterns from data.
--
Darren
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