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Re: [LUG] Backups

 

On Wed, Mar 05, 2008 at 02:58:52PM +0000, Tony Sumner wrote:
> On Mar 05, 2008, Henry Bremridge was like:
> 
> > 4.  Compress backed up files 
> >     
> >     $bzip2 backed_up_files.tar
> 
> I have heard it said that it is better to compress the files separately
> (because if there is an error in a bz2 file you lose everything). What
> do you think?
> 

Short answer: No idea :D

Long answer: 

1.  Creating the tar file is very quick
2.  Compressing the file takes ages on my machine
3.  I do not know how the command "tar -cjf" works: whether 
    -   the complete tar file is created and then compressed
    -   the compressed tar file is created file by file

hence for me, I create the tar file first. At least then I have a backup. 
Compression can take place later: normally as these are just backups, I encrypt them 
to myself. Then I feel that if need be I can simply throw away old CDs as the data 
is of no use to anyone


    
-- 
Henry
Wed Mar  5 15:16:32 GMT 2008

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