| Re: vzdump --xdelta [message #34667 is a reply to message #34629] |
Sat, 24 January 2009 14:40  |
n00b_admin
Messages: 77
Registered: July 2006
Location: Romania
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I don't have a practical example at hand....
But some time ago i hacked the vzdump tool and used two of them.
One for full backups and another one (the modified one) for differential backups.
My hack consisted in modifying the rsync command line to do differential backups against the full one.
I ran a cronjob at the end of the week which provided a directory with the full backup, rsync against actual data and the previous week's backup.
Hourly i ran the second vzdump tool that performed differential backups against actual data and the full backup.
In this way the backup operation was secure and also very low resource consuming since i actually made only differential backups constantly.
Restoring the data consisted in obtaining the original data from the full backup and overwriting the differential backup.
Hope this helps.
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