----- Am 21. Okt 2017 um 4:31 schrieb Duncan 1i5t5.dun...@cox.net:
> Lentes, Bernd posted on Fri, 20 Oct 2017 20:40:15 +0200 as excerpted: > >> Is it generally possible to restore a btrfs partition from a tape backup >> ? >> I'm just starting, and I'm asking myself. What is about the subvolumes ? >> This information isn't stored in files, but in the fs ? This is not on a >> file-based backup on a tape. > > Yes it's possible to restore a btrfs partition from tape backup, /if/ you > backed up the partition itself, not just the files on top of it. > > Otherwise, as you deduce, you get the files, but not the snapshot history > or relationship, nor the subvolumes, which will look to normal file-level > backup software (that is, backup software not designed with btrfs- > specifics like subvolumes, which if it did, would likely use btrfs send/ > receive at least optionally) like normal directories. > > -- Hi Duncan, i apprehend that i have just a file based backup. We use EMC Networker (version 8.1 or 8.2), and from what i read in the net i think it does not support BTRFS. So i have to reinstall, which is maybe not the worst, because i'm thinking about using SLES 11 SP3. What i know now is that i can't rely on our EMC backup. What would you propose to backup a complete btrfs partition (https://btrfs.wiki.kernel.org/index.php/Incremental_Backup) ? We have a NAS with propable enough space, and the servers aren't used heavily over night. So using one of the mentioned tools in a cronjob over night is possible. Which tool do you recommend ? Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Heinrich Bassler, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
