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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