On Sunday, 20 January 2019 7:24:33 AM AEDT Andrew Luke Nesbit via luv-main wrote: > On 08/01/2019 20:34, Russell Coker wrote: > > On Wednesday, 9 January 2019 7:25:35 AM AEDT Andrew Luke Nesbit via > > luv-main> > >> Do you mind if I ask you what your backup regime is? I often ask > >> people when the topic comes up because it's such an important thing. > >> I'm always interested in potentially improving my knowledge and > >> practice. > > > > Firstly I use BTRFS or ZFS for everything that matters. The first stage > > of > > backup is filesystem snapshots, that covers the most common restore case > > of > > "oops I deleted the wrong file". > > Thank you for explaining this to me/us. I have been thinking about what > you wrote in the hope that the penny would drop, but no such luck so far... > > Are you saying that the snapshot _itself_ is literally the first-stage > backup?
Yes. > > Next I rsync files to a disk with a BTRFS filesystem and use BTRFS > > snapshots on that for multiple backups (going back months or years as > > most files don't change much). > > Are the files you rsync to the disk with Btrfs are the snapstop files > you mentioned earlier? Or regular files in the "working portion" of the > main disk/array/NAS? The snapshot files. If you rsync from the files that are writable you risk getting inconsistent sets of files, EG a compiled executable with a version of the source that doesn't match and you also risk inconsistency internally to files (EG databases in use and filesystem images that are mounted or being used in VMs). > > Some of those disks with backups are stored offsite. > > How do you make this decision, and how is this implemented? When I feel like it, or when I'm visiting a relative who has a safe to put them in. I don't have the type of answer you probably expected. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/ _______________________________________________ luv-main mailing list luv-main@luv.asn.au https://lists.luv.asn.au/cgi-bin/mailman/listinfo/luv-main
