The best backup strategy

1st Official Post

    Hello everyone!

    I'm using OMV since 2019 and I don't plan on changing it for the foreseeable future. My machine has an i3 8100, 24 GB RAM and 6 SATA HDDs.


    I'm using snapraid for redundancy but I struggle with an optimal backup solution.


    What I need:

    - a program/script that would start when I plug in an external HDD, does its thing (and maybe notify me when it's done, so I can unplug the drive). I don't want the drive connected at all times, since a ransomware would easily destroy the backup if the drive is connected.

    - incremental backups


    The USB backup plugin sounds good, but it doesn't do incremental backups.


    Borgbackup does incremental backups, but it works with existing omv shares, so I can't insert and remove the drive as I please. Since a share is "referenced" in omv, it can't be mounted before the backup runs and unmounted afterwards.

    How should I handle it?

    Is the viable solution a second device that would pull the backups in? I have a RaspberryPi 3B, but I've read that they are not reliable when it comes to USB storage (the external HDD has its own power).



    Thanks everyone and especially @votdev and @ryecoaaron for their amazing work :!:

    • Official Post

    You could write your own script and use a udev rule to start it once the USB drive is plugged in.


    Quote from jorel69

    Is the viable solution a second device that would pull the backups in? I have a RaspberryPi 3B, but I've read that they are not reliable when it comes to USB storage (the external HDD has its own power).

    Many here do it like this.

    Quote from macom

    You could write your own script and use a udev rule to start it once the USB drive is plugged in.

    Sadly my scripting skills are very limited and I don't even know what udev is.


    I'll give the Pi a try using borgbackup, then.

    Thanks for your reply! :thumbup:

  • jorel69

    Added the Label resolved

  • jorel69

    Added the Label OMV 7.x

    update:
    I went with the Pi route, got a Pi4 (since the3B only has USB2 so it would take a lifetime), installed borgbackup on it and it runs via a cronjob. I'm pleased with the result. Thanks again for the input!

    i used duplicati. I like the features of deduplication, blocking and the nice frontend.

    But i had the same problem with the external usb drives. I now mount them manually.

    Asking chatgpt gives many solution to automount usb drives, also using `udev`. I dont test it right now.



    Quote

    Step-by-step Guide

    1. Create a mount point

    Code
    sudo mkdir -p /media/usb

    2. Write a mount script

    Code
    sudo nano /usr/local/bin/automount-usb.sh

    Paste this content (you can adjust mount options and device filter later):

    Make it executable:

    Code
    sudo chmod +x /usr/local/bin/automount-usb.sh

    3. Create a udev rule

    Code
    sudo nano /etc/udev/rules.d/99-local-usb-mount.rules

    Paste this line (replace sdc1 with your target device or use wildcards):

    Code
    ACTION=="add", KERNEL=="sd[b-z]1", RUN+="/usr/local/bin/automount-usb.sh /dev/%k"

    4. Reload udev rules

    Code
    sudo udevadm control --reload
sudo udevadm trigger

    5. Test it

    • Plug in the USB stick.

    • Check if it auto-mounts to /media/usb:

      Code
      mount | grep usb

Participate now!

Don’t have an account yet? Register yourself now and be a part of our community!

Register Yourself Login