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

From: Dominic Raferd
Subject: Re: [rdiff-backup-users] instrument data backup
Date: Sun, 29 Jul 2012 17:49:25 +0100
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Dear ZF

I don't know of any such mode for rdiff-backup. However it sounds as if it is a set of specific files that you might need to restore. In this case it should be possible to write a script [e.g. in bash] which any user could execute which would recover the latest set of these files from rdiff-backup, whether or not the files still exist 'in the clear' in the repository. I guess all the recovered files should be consistent i.e. from the same backup set?

Timedicer - File Recovery from Whenever

On 29/07/2012 15:55, 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 "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?

If rdiff-backup cannot do it, is there other software which will be perform this function?

Thank you very much for your help


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