Proxmox Backup-server on LXC with external NAS

[Elliott Partridge]

Good to know there are others doing PBS in a container. I arrived at the conclusion that I needed to do this after banging my head against how to get better throughput on a host-guest shared folder. 9p, NFS, and SMB all proved vastly inferior to bare-metal and LXC bind-mount performance.

 

[Singman]

Good to know but still a few missing parts to be valuable. A good start could be a how-to because for now, we should scan all the forum and a few Google pages to find how to do a LXC PBS under Proxmox.

 

[DataCollector]

Thanks for posting this @rickyo !
Its 2023 and I just used your guide to add a PBS LXC to my system.
All I needed to do is update your commands to be suitable with Debian bullseye:

Do:

apt-get update
apt-get dist-upgrade

Install the repo key

wget http://download.proxmox.com/debian/proxmox-release-bullseye.gpg -O /etc/apt/trusted.gpg.d/proxmox-release-bullseye.gpg

Add PBS debian package repo to /etc/apt/sources.list

# THIS IS THE NEW ADDITION
# PBS pbs-no-subscription repository provided by proxmox.com,
# NOT recommended for production use
deb http://download.proxmox.com/debian/pbs bullseye pbs-no-subscription

Install the PBS-server software

apt-get update
apt-get install proxmox-backup-server

Again thank you for this guide!

 

[spitf1r3]

Was anyone able to passthrough a (LTO-5) tape drive to it?

 

[Aluveitie]

Was anyone able to passthrough a (LTO-5) tape drive to it?

To pass a LTO (or any device) to an LXC Container run:

root@server:/dev $ ls -alh /dev/st0
crw-rw---- 1 root tape 9, 0 Sep  1 22:10 /dev/st0

root@server:/dev $ ls -alh /dev/sg0
crw-rw---- 1 root tape 21, 0 Sep  1 22:10 /dev/sg0

root@server:/dev $ls -alh /dev/tape/by-id
drwxr-xr-x 2 root root 120 Sep  1 22:10 .
drwxr-xr-x 4 root root  80 Sep  1 14:48 ..
lrwxrwxrwx 1 root root   9 Sep  1 22:10 scsi-XXX -> ../../st0
lrwxrwxrwx 1 root root  10 Sep  1 22:10 scsi-XXX-nst -> ../../nst0

Then add to the lxc config using the two numbers from above (9, 0):

lxc.cgroup2.devices.allow: c 9:* rwm
lxc.cgroup2.devices.allow: c 10:* rwm
lxc.cgroup2.devices.allow: c 21:* rwm
lxc.mount.entry: /dev/st0 dev/st0 none bind,optional,create=file
lxc.mount.entry: /dev/nst0 dev/nst0 none bind,optional,create=file
lxc.mount.entry: /dev/sg0 dev/sg0 none bind,optional,create=file
lxc.mount.entry: /dev/tape/by-id/scsi-XXX dev/tape/by-id/scsi-XXX none bind,optional,create=file
lxc.mount.entry: /dev/tape/by-id/scsi-XXX-nst dev/tape/by-id/scsi-XXX-nst none bind,optional,create=file

That got my LTO-6 drive passed through and properly recognized by `proxmox-tape`

 

[spitf1r3]

To pass a LTO (or any device) to an LXC Container run:

root@server:/dev $ ls -alh /dev/st0
crw-rw---- 1 root tape 9, 0 Sep  1 22:10 /dev/st0

root@server:/dev $ ls -alh /dev/sg0
crw-rw---- 1 root tape 21, 0 Sep  1 22:10 /dev/sg0

root@server:/dev $ls -alh /dev/tape/by-id
drwxr-xr-x 2 root root 120 Sep  1 22:10 .
drwxr-xr-x 4 root root  80 Sep  1 14:48 ..
lrwxrwxrwx 1 root root   9 Sep  1 22:10 scsi-XXX -> ../../st0
lrwxrwxrwx 1 root root  10 Sep  1 22:10 scsi-XXX-nst -> ../../nst0

Then add to the lxc config using the two numbers from above (9, 0):

lxc.cgroup2.devices.allow: c 9:* rwm
lxc.cgroup2.devices.allow: c 10:* rwm
lxc.cgroup2.devices.allow: c 21:* rwm
lxc.mount.entry: /dev/st0 dev/st0 none bind,optional,create=file
lxc.mount.entry: /dev/nst0 dev/nst0 none bind,optional,create=file
lxc.mount.entry: /dev/sg0 dev/sg0 none bind,optional,create=file
lxc.mount.entry: /dev/tape/by-id/scsi-XXX dev/tape/by-id/scsi-XXX none bind,optional,create=file
lxc.mount.entry: /dev/tape/by-id/scsi-XXX-nst dev/tape/by-id/scsi-XXX-nst none bind,optional,create=file

That got my LTO-6 drive passed through and properly recognized by `proxmox-tape`

Which lxc config file do you mean? I've adjusted the paths, and tried adding it to my /etc/lxc/default.conf before creating ct, and it wasn't mounted afterwards.
/etc/pve/lxc/<id>.conf has a different format, and does not seem to understand lxc config entries

 

[Aluveitie]

That

Which lxc config file do you mean? I've adjusted the paths, and tried adding it to my /etc/lxc/default.conf before creating ct, and it wasn't mounted afterwards.
/etc/pve/lxc/<id>.conf has a different format, and does not seem to understand lxc config entries

I added those paths to the /etc/pve/lxc/<id>.conf

 

[spitf1r3]

That

I added those paths to the /etc/pve/lxc/<id>.conf

Thanks, that worked