Re: [DNG] OT: KVM/QEMU incremental backups?
On 11/19/19 8:21 PM, hal wrote: > Is anyone doing QEMU/KVM incremental backups of a running VM? I'm trying > to find some info on how best to accomplish the backup as well as a > restore. I have not done it with a VM, but I suppose it should work fine: LVM snapshot. I take one every 30 minutes on a file server and can access "changes" by SMB users easily. ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] OT: KVM/QEMU incremental backups?
Anno domini 2019 Wed, 20 Nov 23:21:23 -0800 tom scripsit: > [...] > In all seriousness ZFS is pretty good and would already have been > merged with the kernel if it wasn't given a purposefully GPL > incompatible license in an attempt to sell more Solaris installs. See > how that worked out for them. > Well, it boils down to whom you belive :) https://www.theregister.co.uk/2019/08/12/canonical_zfs_ubuntu/ As with all these lizence issues ... the party with more money will most likely win. Nik -- Please do not email me anything that you are not comfortable also sharing with the NSA, CIA ... ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] OT: KVM/QEMU incremental backups?
On Thu, 21 Nov 2019 08:08:41 +0100 "Dr. Nikolaus Klepp" wrote: > Anno domini 2019 Wed, 20 Nov 22:59:28 -0800 > tom scripsit: > > On Wed, 20 Nov 2019 10:58:35 +0100 > > "Dr. Nikolaus Klepp" wrote: > > > > > was not able to access my data after a kernel upgrade > > Oh you'll LOVE Nvidia graphics cards then. (Sarcasm) > Oh yes. And I really like KDE5 - tried it yesterday to see if my > favorite no-go-bug was fixed after 5 years. Nop, it wasn't: > ksplashqml freezes in intel x11. > > Nik > > > > > > > > In all seriousness ZFS is pretty good and would already have been merged with the kernel if it wasn't given a purposefully GPL incompatible license in an attempt to sell more Solaris installs. See how that worked out for them. -- _ / There can be no twisted thought without \ | a twisted molecule. | | | \ -- R. W. Gerard / - \ \ /\ /\ //\\_//\\ \_ _// / / * * \/^^^] \_\O/_/[ ] / \_[ / \ \_ / / [ [ / \/ _/ _[ [ \ /_/ ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] OT: KVM/QEMU incremental backups?
Anno domini 2019 Wed, 20 Nov 22:59:28 -0800 tom scripsit: > On Wed, 20 Nov 2019 10:58:35 +0100 > "Dr. Nikolaus Klepp" wrote: > > > was not able to access my data after a kernel upgrade > Oh you'll LOVE Nvidia graphics cards then. (Sarcasm) Oh yes. And I really like KDE5 - tried it yesterday to see if my favorite no-go-bug was fixed after 5 years. Nop, it wasn't: ksplashqml freezes in intel x11. Nik > -- Please do not email me anything that you are not comfortable also sharing with the NSA, CIA ... ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] OT: KVM/QEMU incremental backups?
On Wed, 20 Nov 2019 10:58:35 +0100 "Dr. Nikolaus Klepp" wrote: > was not able to access my data after a kernel upgrade Oh you'll LOVE Nvidia graphics cards then. (Sarcasm) -- / The course of true anything never does \ | run smooth.| || \ -- Samuel Butler / \ \ /\ /\ //\\_//\\ \_ _// / / * * \/^^^] \_\O/_/[ ] / \_[ / \ \_ / / [ [ / \/ _/ _[ [ \ /_/ ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] OT: KVM/QEMU incremental backups?
On 11/20/19 3:58 AM, Dr. Nikolaus Klepp wrote: Sorry, but I have left out a small but maybe important detail: The servers run FreeBSD, since ZFS on linux bit me when I was not able to access my data after a kernel upgrade - that was ~ a year ago ... Ahh yes. Small but very pertinent xD I hope for a Linux solution but thank you for your input. ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] OT: KVM/QEMU incremental backups?
Anno domini 2019 Wed, 20 Nov 10:53:41 +0100 Didier Kryn scripsit: > Le 20/11/2019 à 10:48, hal a écrit : > > > > > > On 11/19/19 6:00 AM, Dr. Nikolaus Klepp wrote: > > > >> > >> I do it on ZFS with snapshots. Works quite nice :) > >> > >> Nik > >> > > > > Do you use the zfs-fuse package or must I build ZFS myself? > > To follow on, question to Nik, to follow on another thread: do you > use ZFS on SSD or rotative disk? > > Didier On the servers: no SSD. On testmachine: SSD. Sorry, but I have left out a small but maybe important detail: The servers run FreeBSD, since ZFS on linux bit me when I was not able to access my data after a kernel upgrade - that was ~ a year ago ... Nik > > > > ___ > Dng mailing list > Dng@lists.dyne.org > https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng > -- Please do not email me anything that you are not comfortable also sharing with the NSA, CIA ... ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] OT: KVM/QEMU incremental backups?
Le 20/11/2019 à 10:48, hal a écrit : On 11/19/19 6:00 AM, Dr. Nikolaus Klepp wrote: I do it on ZFS with snapshots. Works quite nice :) Nik Do you use the zfs-fuse package or must I build ZFS myself? To follow on, question to Nik, to follow on another thread: do you use ZFS on SSD or rotative disk? Didier ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] OT: KVM/QEMU incremental backups?
On 11/19/19 6:00 AM, Dr. Nikolaus Klepp wrote: I do it on ZFS with snapshots. Works quite nice :) Nik Do you use the zfs-fuse package or must I build ZFS myself? Thank you ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] OT: KVM/QEMU incremental backups?
Anno domini 2019 Tue, 19 Nov 05:21:22 -0600 hal scripsit: > Is anyone doing QEMU/KVM incremental backups of a running VM? I'm trying > to find some info on how best to accomplish the backup as well as a > restore. > > What I want is to run my VM on a single SSD but take an incremental > snapshot of the VM every few hours, saving it to SATA RAID. I only want > to save what's changed (delta image?) and not an entire copy of the > image each time. > > I find a lot of info like the link[1] below showing how to properly > snapshot and copy the base image, but not a lot showing how to actually > recover if I need to restore. Is it just a matter of first saving > the base image, and then saving every snapshot after that? Combining > them with the `blockcommit` command if I need to restore? I do it on ZFS with snapshots. Works quite nice :) Nik > > Thanks > > [1] > https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit > ___ > Dng mailing list > Dng@lists.dyne.org > https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng > -- Please do not email me anything that you are not comfortable also sharing with the NSA, CIA ... ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
[DNG] OT: KVM/QEMU incremental backups?
Is anyone doing QEMU/KVM incremental backups of a running VM? I'm trying to find some info on how best to accomplish the backup as well as a restore. What I want is to run my VM on a single SSD but take an incremental snapshot of the VM every few hours, saving it to SATA RAID. I only want to save what's changed (delta image?) and not an entire copy of the image each time. I find a lot of info like the link[1] below showing how to properly snapshot and copy the base image, but not a lot showing how to actually recover if I need to restore. Is it just a matter of first saving the base image, and then saving every snapshot after that? Combining them with the `blockcommit` command if I need to restore? Thanks [1] https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng