On Tue, August 9, 2016 1:11 am, Alessandro Baggi wrote: > Good morning list, > I've a question about backup performed with bacula. > I manage a DELL server (dedicated on provider) with C7. I use bacula as > backup system with volumes on disk. System performs mon-sat incremental > backups and Sun full backup at 03.00 AM. I've another pool (named > update) where I performs backup before each software update. Storage is > on and external disk 2.5' of 1TB. > > Yesterday, I've applied centos update and I've performed a full backup > before apply updates. Job done. > > After several hours, I got my disk unmounted and disconnected due to > disk error (seems that this disk is failing) and was unable to remount > disk. Rebooting system, the disk was mounted correctly. > > This morning I've checked if something happened. Backup performed and > disk mounted without errors but I've noticed a strange behaviour. > > My incremental backup is large as last full backup (performed on > sunday). This is the last jobs performed. > > 76 | backup-fd | 2016-08-07 03:04:44 | B | F | 191,040 | > 7,975,649,059 | T | > | 77 | backup-fd | 2016-08-08 03:04:57 | B | I | 44 | > 44,593,988 | T | > > > | 78 | backup-fd | 2016-08-08 09:52:57 | B | F | 191,024 | > 7,978,295,072 | T | > > > | 79 | backup-fd | 2016-08-08 12:10:31 | B | F | 0 | > 0 | A | > > > | 80 | backup-fd | 2016-08-09 03:05:03 | B | I | 191,024 | > 7,978,337,100 | T > > > Job with id 79 was aborted due to disk failure. > > Why, if I have a job full performed on sunday, on monday I got an incr > job with the same size? Seems to be that the last incremental job was > performed without considering the last full backup. My wild guess would be: if drive fails filesystem might get remounted read-only on the fly, then bacula will discover the difference in permissions (r-x instead of rwx) and will back up the file again, no matter that it already is in full backup. Whichever time it was read only: could be full: r-x incremental rwx or other way around. Again, this is not a diagnostics, just a wild guess, but you have both backups: find out which file was backed up both times though didn't change, restore both versions, compare permissions, and compare contents. And hopefully you will know the answer, or at least you will get the hint _why_ while you will be doing this. Valeri > > I've checked log but there aren't errors. > > Thanks. > > Alessandro. > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos > ++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++