[PVE-User] Backup of all Containers and KVM

[PVE-User] Backup of all Containers and KVM

[sebastian]

Hi,

if i want to get a full backup - can i copy the 100,101... folders complete to the backup server to get the data for  an emergency restore later?

Or is it required to use the internal backup function to get Backup files from containers and KVM and copy the dump-directory to the backup server?

tnx
Sebastian

Re: [PVE-User] Backup of all Containers and KVM

[Lukas Wagner]

On 9/29/23 09:53, sebastian@debianfan.de wrote:
> Hi,
> 
> if i want to get a full backup - can i copy the 100,101... folders complete to the backup server to get the data for  an emergency restore later?
> 
> Or is it required to use the internal backup function to get Backup files from containers and KVM and copy the dump-directory to the backup server?
> 

I'd recommend using PVE's backup function, it includes everything needed
to fully restore the VM/CT. If you need to automate that from a script,
you can use the `vzdump` command (check `man vzdump` or [1] for
instructions).
You can then copy the backup files from the dump directory. You could
also add the backup server as a storage (NFS or SMB) [2], then you can
backup to the server directly, without having to copy the backup
archives.

The '100, 101' folders - by which I think you mean the directories in
/etc/pve/{qemu,lxc} only contain the configuration files for the VM/CT,
but not the disk image. Of course, you can back them up manually and
then dump the disk image as well, but like I said, unless you have a
very good reason against PVE's native backup system (vzdump), I'd
recommend using that.

It might also be worth checking out Proxmox Backup Server, which has the 
additional benefit of offering deduplication, encryption, live-restore 
and much more.

[1] https://pve.proxmox.com/pve-docs/vzdump.1.html
[2] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#chapter_storage

-- 
- Lukas

Re: [PVE-User] Backup of all Containers and KVM

[Gilberto Ferreira]

Proxmox Backup Server +1
---
Gilberto Nunes Ferreira
(47) 99676-7530 - Whatsapp / Telegram






Em sex., 29 de set. de 2023 às 05:27, Eneko Lacunza via pve-user <
pve-user@lists.proxmox.com> escreveu:

>
>
>
> ---------- Forwarded message ----------
> From: Eneko Lacunza <elacunza@binovo.es>
> To: pve-user@lists.proxmox.com
> Cc:
> Bcc:
> Date: Fri, 29 Sep 2023 10:27:12 +0200
> Subject: Re: [PVE-User] Backup of all Containers and KVM
> Hi Sebastian,
>
> El 29/9/23 a las 9:53, sebastian@debianfan.de escribió:
> > if i want to get a full backup - can i copy the 100,101... folders
> complete to the backup server to get the data for  an emergency restore
> later?
> >
> > Or is it required to use the internal backup function to get Backup
> files from containers and KVM and copy the dump-directory to the backup
> server?
> >
>
> Use the backup function, as it is foolproof.
>
> To make a backup manually, you must copy .conf files from
> /etc/pve/qemu-server , and at least copy virtual disk files, that may be
> in a directory or not depending on the storage type. There could be
> other caveheats.
>
> The built-in backup resolves all that for you :)
>
> Cheers
>
> Eneko Lacunza
> Zuzendari teknikoa | Director técnico
> Binovo IT Human Project
>
> Tel. +34 943 569 206 | https://www.binovo.es
> Astigarragako Bidea, 2 - 2º izda. Oficina 10-11, 20180 Oiartzun
>
> https://www.youtube.com/user/CANALBINOVO
> https://www.linkedin.com/company/37269706/
>
>
>
>
>
> ---------- Forwarded message ----------
> From: Eneko Lacunza via pve-user <pve-user@lists.proxmox.com>
> To: pve-user@lists.proxmox.com
> Cc: Eneko Lacunza <elacunza@binovo.es>
> Bcc:
> Date: Fri, 29 Sep 2023 10:27:12 +0200
> Subject: Re: [PVE-User] Backup of all Containers and KVM
> _______________________________________________
> pve-user mailing list
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>

Re: [PVE-User] Backup of all Containers and KVM

[sebastian]

Thx - i know how to use the vzdump-tool - but the last backup of an 
lxc-container (500 GB) runs about 10 hours by using vzdump :-(



Am 29.09.2023 um 10:24 schrieb Lukas Wagner:
> 
> 
> On 9/29/23 09:53, sebastian@debianfan.de wrote:
>> Hi,
>>
>> if i want to get a full backup - can i copy the 100,101... folders 
>> complete to the backup server to get the data for  an emergency 
>> restore later?
>>
>> Or is it required to use the internal backup function to get Backup 
>> files from containers and KVM and copy the dump-directory to the 
>> backup server?
>>
> 
> I'd recommend using PVE's backup function, it includes everything needed
> to fully restore the VM/CT. If you need to automate that from a script,
> you can use the `vzdump` command (check `man vzdump` or [1] for
> instructions).
> You can then copy the backup files from the dump directory. You could
> also add the backup server as a storage (NFS or SMB) [2], then you can
> backup to the server directly, without having to copy the backup
> archives.
> 
> The '100, 101' folders - by which I think you mean the directories in
> /etc/pve/{qemu,lxc} only contain the configuration files for the VM/CT,
> but not the disk image. Of course, you can back them up manually and
> then dump the disk image as well, but like I said, unless you have a
> very good reason against PVE's native backup system (vzdump), I'd
> recommend using that.
> 
> It might also be worth checking out Proxmox Backup Server, which has the 
> additional benefit of offering deduplication, encryption, live-restore 
> and much more.
> 
> [1] https://pve.proxmox.com/pve-docs/vzdump.1.html
> [2] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#chapter_storage
> 

Re: [PVE-User] Backup of all Containers and KVM

[Lukas Wagner]

On 9/29/23 13:43, sebastian@debianfan.de wrote:
> Thx - i know how to use the vzdump-tool - but the last backup of an 
> lxc-container (500 GB) runs about 10 hours by using vzdump :-(
> 

What kind of storage do you use? That sounds awfully long for 500GB.

As a side note: This is also a point where Proxmox Backup Server comes
in handy, at least for VMs: There we have something that is called a 
'dirty bitmap' - essentially QEMU tracks which parts of the disks have 
been written to since the last backup. This significantly speeds up
further backups. However, as mentioned, this is only available for VMs,
not LXC containers.

-- 
- Lukas

Re: [PVE-User] Backup of all Containers and KVM

[Gilberto Ferreira]

Yes.
Vzdump is rather slow.
You can try tweak /etc/vzdump.conf and set the tmp directory.
But still, it's slow compared to PBS and there are no incremental backups.
Not at all, since PBS use deduplication.
---
Gilberto Nunes Ferreira
(47) 99676-7530 - Whatsapp / Telegram






Em sex., 29 de set. de 2023 às 08:44, sebastian@debianfan.de <
sebastian@debianfan.de> escreveu:

> Thx - i know how to use the vzdump-tool - but the last backup of an
> lxc-container (500 GB) runs about 10 hours by using vzdump :-(
>
>
>
> Am 29.09.2023 um 10:24 schrieb Lukas Wagner:
> >
> >
> > On 9/29/23 09:53, sebastian@debianfan.de wrote:
> >> Hi,
> >>
> >> if i want to get a full backup - can i copy the 100,101... folders
> >> complete to the backup server to get the data for  an emergency
> >> restore later?
> >>
> >> Or is it required to use the internal backup function to get Backup
> >> files from containers and KVM and copy the dump-directory to the
> >> backup server?
> >>
> >
> > I'd recommend using PVE's backup function, it includes everything needed
> > to fully restore the VM/CT. If you need to automate that from a script,
> > you can use the `vzdump` command (check `man vzdump` or [1] for
> > instructions).
> > You can then copy the backup files from the dump directory. You could
> > also add the backup server as a storage (NFS or SMB) [2], then you can
> > backup to the server directly, without having to copy the backup
> > archives.
> >
> > The '100, 101' folders - by which I think you mean the directories in
> > /etc/pve/{qemu,lxc} only contain the configuration files for the VM/CT,
> > but not the disk image. Of course, you can back them up manually and
> > then dump the disk image as well, but like I said, unless you have a
> > very good reason against PVE's native backup system (vzdump), I'd
> > recommend using that.
> >
> > It might also be worth checking out Proxmox Backup Server, which has the
> > additional benefit of offering deduplication, encryption, live-restore
> > and much more.
> >
> > [1] https://pve.proxmox.com/pve-docs/vzdump.1.html
> > [2]
> https://pve.proxmox.com/pve-docs/pve-admin-guide.html#chapter_storage
> >
>
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