On Tue, 21 Aug 2007 09:04:40 -0500 Carl Wilhelm Soderstrom <[EMAIL PROTECTED]> wrote:
> I just noticed today that one of the hosts I'm backing up, is suddenly > taking much longer to back up. Looks like someone put a large quantity of > new data on it. > > Problem is that whereas the full backups used to take (as a proportional > scale) 1x, and incrementals perhaps 0.2x, the latest incrementals are taking > ~2.5x the time of the last full backup. Due to the way backups are done in > backuppc (always making an incremental against the last full), they'll keep > on being excessively large until the next full backup. > > Would it be reasonable to have backuppc check the time used by the last > incremental against the time used by the last full, and if it's taken longer > to do the incremental, then automatically do a full backup next time? (Of > course, make a note in the logs as to why this was done). If this is really the way backuppc does incremental backups, I think backuppc should be a bit more incremental with its incremental backups. Instead of comparing against the last full, it should compare against the last full and incremental backups. This would solve this problem and make backuppc more efficient anyway, AFAIK. -- Jacob "For then there will be great distress, unequaled from the beginning of the world until now—and never to be equaled again. If those days had not been cut short, no one would survive, but for the sake of the elect those days will be shortened." Are you ready?
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