Why YOU Should Backup Your Data!

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► Links:
Proxmox Backup Server ►► www.proxmox.com/en/proxmox-ba...
Timeshift (Avail. in most repos) ►► github.com/teejee2008/timeshift
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🎵 Music from StreamBeats by Harris Heller.
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► Chapters:
00:00 - My Proxmox VMs broke
01:19 - Repairing a Filesystem with fsck
01:30 - Restoring the Fileserver
02:22 - The importance of backups
03:01 - Upgrading my Server
04:41 - Preventing VM breakouts
05:03 - Conclusion
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► Description Tags:
proxmox tutorial, proxmox backup server, recover files from corrupted hard drive, recover files from raw drive, how to recover corrupted files, linux fsck, linux fsck repair filesystem, proxmox backup server zfs, linux, opensource, open source, linux not booting, michael horn
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#linux #opensource #proxmox

[@laskaofalaska]

Alright, time to backup. Been slacking for a few weeks. Thanks for the reminder!

[@MichaelNROH]

You're welcome 😅

[@jimbo-dev]

- raid (or zfs) is not a backup - the worst enemy for your data is you (accidental deletions, misconfigurations) Interesting to see proxmox zfs being used, I did consider that too but ended up with (almost) diskless proxmox and dedicated truenas hardware. I'm hoping that backing up a bigger storage unit would be easier to manage than multiple small ones and that way it would be less likely that I forget to back something up - even with automations. But being honest, my backup server motherboard is still at DHL, so I'm still living on an edge for a couple of days, hopefully for the last time ever.

[@bizbarley74]

I have always been a fan of emergency backups. And every data back up I make, is then itself backed up once again. I'm using 5tb external HDDs, so you can never be too careful as you hinted at, and I totally agree. These things always seem to happen at the worst possible time. However, ironically a system failure worked in my favor once very recently, and that is what got me fed-up with Windows and got me into Linux. I did not lose anything because I was able to remove the drive, put it into an external encasement and retrieve my files. Then I simply wiped the drive and installed my first ever Linux distro. If Windows had not gotten corrupted beyond repair, I fear it would have been a long time before I finally gave Linux a try, and that would have been a shame, because I really love it. Class video mate. I enjoy your content. And I hope you and your family have a safe and happy holiday and new years. Cheers brother!

[@MichaelNROH]

Thanks, I appreciate the comment

[@FengLengshun]

I do backup most of my data across, like, five different devices with Resilio. Only my home server and PC has access to everything, though, but for really important ones like work and supporting docs for CV, I do try to get it backed up across as many devices as I could.

[@Slate245Ivanovo]

Once again, I'm reminded of backups. But this topic is driving me nuts. I consider myself to be somewhat familiar with linux at this point, but I can't for the life of me find an approachable way to backups. It's either "just rsync it to a drive, no biggie" or "here's 17 reasons why you are backing up wrong, all of which are way over your head" What's your backup strategy? Is it just copying files by hand to an external drive? Is it scheduled? What tool do you use? Is it a snapshot backup or image or obly select files rather than the whole system?

[@MichaelNROH]

For my Virtual Machines I now use scheduled backups with Proxmox's Backup Server. Those backups are essentially snpashots that get "deduplicated" to avoid saving full backups all the time. I've two backups of the last two days, and one of the past week (saturday in my case). On my Desktop I use timeshift with btrfs, though this only gets my PC back up running quickly since I have no important data on there.

[@Slate245Ivanovo]

@MichaelNROH as I gathered, Proxmox backup server is only good for backing up vms that you run on another proxmox box. Is that so? What would you recommend for backing up a more traditional server? Like an RPi running rocky linux

[@MichaelNROH]

@@Slate245Ivanovo Probably Timeshift, using rsync to an external device. You should be able to restore everything to a disk if it breaks

[@classicrockonly]

Check out restic, borg backup (vorta is a GUI for borg), or kopia. Good tools for backups. Do daily backups. Each of those tools have built in commands to prune away the old extra backups. I do my home files as well as custom config files in /etc that I have. I use restic to backup my computers to my server, and zap (a wrapper around ZFS commands) to backup my server to a hard drive. I rotate that drive off site monthly in case my house burns down or gets broken into. 3-2-1 rule is important if you can do it

[@RogerioPereiradaSilva77]

You might want to take a look at both borg backup and restic. You will thank me later!

[@ionamygdalon2263]

Backups, what everyone knows has to be done but no one does 😅

[@hirakoisdead]

Hey Michael, the new version of zorin is up are you gonna make a video about it?

[@MichaelNROH]

Nick from the Linux Experiment already covered it pretty well, so not at the moment. I will probably cover it in combination with something more hardware related, or in a beginners guide or something.

[@gungun974]

At one time I had decide on my Server to use Software Raid. It's was a regular Linux Server and the RAID had work for pretty well. Except the day when after a reboot, nothing... I discover that stupid mdadm had forgot my RAID !!! It's was a huge pain and fear to recover my Data, I have to recreate the RAID with the same command I use to create it. I really tough I will loose a lot of DATA. But by chance It's just take 8h of waiting with fear. Today I don't use RAID anymore. I use regular Filesystem with MergeFS to create a unify one. And for the disk failed I don't care. I had now a dedicated home server Off site to sync my Data so if One of those die. I'm safe. But It's that kind of moment that make you relise how important and critical are Backups. Never underestimate a backup. Even if it's old. That's the kind of thing that can really save you !

[@MichaelNROH]

Yep. Even the most reliable features can break at some point, so it's extremely important to keep backups. In 2016 I suffered an extreme dataloss when an HDD randomly broke. That was a huge pain and I always make sure to keep at least some backups since then. But it's still not enough. This failure reminded me, that I depend on a lot of my data daily, or at least weekly depending on the day.

[@martineyles]

I've been using Microsoft OneDrive business for personal backups (because I have a package with email) on Windows. Thinking about switching to Linux when Windows 10 support ends, but I'm not sure whether I would be able to sync OneDrive with Linux.

[@MichaelNROH]

The Desktop Environment Gnome actually has a native OneDrive integration now

[@martineyles]

@@MichaelNROH Oh, that might affect my choices - was planning to go KDE, as I like the standard layout better, but this could push me towards Gnome.

[@omarashraf27]

Can you make a dedicated video about your server and another one about the whole backing up process? You know for noobs like me who don't even know how to back up their file?🙋‍♂

[@MichaelNROH]

Yep, it's planned already

[@Gskvj]

Wait, the ACS kernel patch allows VMs to interact with hardware on host? I didn't quite understand the sentence

[@MichaelNROH]

Many mainboards group several parts of your hardware into one IOMMU group, since they often use the same lanes. E.g. on many mainboards that have a second PCIe and M.2 slot, you are only supposed to use one of them since they use the same bus and are usually grouped together. That means that if you pass the PCIe slot through, you also pass through the M.2 slot and whatever else is in that group. Sometimes the passthrough of such slots doesn't work at all, since it includes crucial parts like the SATA controller, and this is where the ACS Patch comes into place. If you know what you are doing, e.g. you only use an offline capture card, then that's a safe thing to do. However, if you use another device that is able to write data, then it could be possible to read data from the shared bus. The VM and Proxmox both think it's isolated, while on the physical plane it's not, aka. a VM breakout. Such an attack is very rare though

[@Gskvj]

​@@MichaelNROHthank you!

[@notkudu]

why you standing in the corner, hiding from someone?