Re: [rdiff-backup-users] instrument data backup

[Adrian Klaver]

On 07/29/2012 07:55 AM, Z F wrote:
> Dear rdiff-backup users
>
>
> I have a question and thought you might  help me.
>
> I need to backup data from a scientific instrument. The problem is that the 
> instrument has limited space, so
>
> data has to be moved from the instrument onto other drive. From time to time, 
> the old data needs to be copied
> back to the instrument. Rdiff-backup is handy because regular "cp" command will 
> restore the latest version of the datafile.
> Thus users can be given read-access to the backup and they can restore data 
> they need by themselves.

The above confuses me. You say the old data needs to copied back, but 
then you say rdiff-backup is handy because it allows the latest version 
to be copied back. Not sure I am following the logic:)

> The "problem" is that if the file is deleted from the source it will no longer be 
> available in the "mirror mode". The file
> is still there in the backups, but now hidden and a regular user cannot find it by 
> looking at the "backup/destination" folder.
> I cannot expect the users to be able to do "restore process by themselves"
>
>
> Is there a mode of rdiff-backup operation which would allow "mirror with 
> memory" that is, to tell the program not to
>
> delete the file in the mirror, even though it was deleted in the source?

Still not sure I am following correctly. Still, why not move the data 
from the instrument to a directory on the hard drive and then 
rdiff-backup from that directory to another directory?

> If rdiff-backup cannot do it, is there other software which will be perform 
> this function?
>
> Thank you very much for your help
>
> ZF
>
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--
Adrian Klaver
address@hidden