Tape drives in Dell server

[Mr_M_Cox]

hi,

I am just looking at our backups and it seems that I can only have a compression ratio of 1.2:1 not the maximum advertised of 2:1.

 

Has anyone else found this or know a fix

 

thanks all

[DMcCoy]

If it's only 1.2:1 then your data is just not very compressible (if that's a word).

 

I'm only getting around 1.25:1, it was closer to 1.4:1 before I included the files for student mac folders.

[Mr_M_Cox]

so basic .doc files for instance can be compressed more than complex mp4's for example?

[srochford]

It's not the complexity, it's the fact it's already been compressed. BMP files will compress; JPG much less so and so on.

 

Word .docx files won't compress as much as .doc (because the .docx format is already a zip archive)

[tmcd35]

so basic .doc files for instance can be compressed more than complex mp4's for example?

 

MP4 already contain a huge amount of compression, look at the size of a raw .wav file for comparison. So their is not much left to compress in an MP4. I don't think .doc file include any compression, so their is quite a margin for reducing the file size.