Borg Backup. It can work locally or over network. Takes snapshots of the files you give it. Performs deduplication, compression and optionally encryption. You can check the integrity of the backups and repair them. There's a very simple to use GUI for it called Pika Backup to get you started.
this post was submitted on 17 Feb 2024
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Punch cards. Is it the best no but no one is going to bother to steal my data. Encryption through inconvenience
Do a riffle shuffle to make them even more secure!
that doesn't require I keep a full local copy of all the data
If you don't do that, the place that you call "backup" is the only place where it is stored - that is not a Backup. A backup is an additional place where it is stored, for the case when your primary storage gets destroyed.
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I use Borg Backup to a Hetzner storage box but doing the same thing to a disk array would work fine. How much data are you talking about? What is the usage picture? Backup and archiving are really not the same thing.
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Are we talking personal offsite backup, or a commercial cloud service?
For cloud backups I like BackBlaze but I’ve never tried to use it as a general cloud storage drive.
This would be self-hosted and local, one of the locations in a 3-2-1 strategy. BackBlaze would work for an offsite but I already have that portion covered.
that doesn't require I keep a full local copy of all the data
So you want a local self hosted backup, but also not a full copy? So like backup only recently changed files?
I want like one local device to have a full copy, but the devices writing new data into that one do not need a full copy.
I think you just described using a NAS as primary storage.
Do you have a software you like for that?
Open Media Vault
I've been using TrueNas with a nightly sync to Backblaze for years and I like it.
It used to be called FreeNas and used FreeBSD. Now the BSD version is called TrueNas Core, and a new Linux based version is called TrueNas Scale.
I would go with TrueNas Scale if I were starting a new one today. You probably won't use the "jail" functionality immediately, but they're super handy, and down the line if you start playing with them, you'll run into fewer compatibility issues running Linux vs BSD.
It’s basically a RAID + File shares like SMB.
Loads of DIY options, but I use a Synology so I don’t need to mess with anything.
In technical terms you mean doing an incremental or differential back up to a local network storage location, correct?
"Incremental" sounds right. I want it to act like rsync without deleting files on the destination, so all the folders are merged. (It would be cool if it kept versions but I don't absolutely need that.) Tools like Borg or Restic look great, but I have been searching to see if they support this kind of usage and they seem not to.
Rsync is liiiiifffeee
Rclone.org is poetry then ;)
I use rclone, with encryption, to S3. I have close to 3TB of personal data backed up to S3 this way - photos, videos, paperless-ngx (files and database).
Only readable if you have the passwords configured on my singular backup host (a RasPi), or stored in Bitwarden.
This alongside using Backblaze is what I would suggest assuming you are thinking online. Cheap and reliable, also relatively easy via a cron job. https://help.backblaze.com/hc/en-us/articles/1260804565710-Quickstart-Guide-for-Rclone-and-B2-Cloud-Storage
Backblaze don't have a POP in my country, unfortunately.
tarsnap makes use of S3. does a decent deduplication job as well
rsync and another hard drive
So i understood you just want some local storage system with some fault tolerance.
ZFS will do that. Nothing fancy, just volumes as either blockdevice or ZFS filesystem.
If you want something more fancy, maybe even distributed, check out storage cluster systems with erasure coding, less storage wasted than with pure replication, though comes at reconstruction cost if something goes wrong.
MinIO comes to mind, tough i never used it.. my requirements seem to be so rare, these tools only get close :/
afaik you can add more disks and nodes more or less dynamically with it.
Yeah it's hard to find something that perfectly fits just what you want. I think it's better if I do something simple like ZFS and maybe some kind of file server on top.
Sounds like something like "git annex" is what you're looking for?
I use this to manage all my photos. It lets you add binaries and synchronize then to a backend server (can be local, can be s3, back blaze, etc).
You can then "drop" files and it ensures a remote exists first. And when you drop the file your still see a symlink of it locally (it's broken) so that you know it exists.
My workflow is to add my files, sync them to both a local server and b2, then I drop and fetch folders as i need (need disk space? "git annex drop 2022*", want to edit some photos? "git annex get 2022_10_01".
All of my machines back up to my home server’s RAID over WebDAV with Nephele.
Then every few days I’ll manually sync them to a server at my parents’ house with a single huge HDD using rsync. I do this manually so that if anything happens to my home server (like ransomware) it doesn’t mirror destroyed data.
Since the Nephele share is just WebDAV, I can mount it locally and move things into it that I don’t want local anymore.
I created Nephele, and I just finished writing an encryption plugin. I wrote it because I’m also going to write an S3 adapter. That way, you can store things in S3, but they’ll be encrypted, so Amazon can’t see them.
This is really cool. I ended up trying something similar: serving from a ZFS pool with SeaweedFS. TBD if that's going to work for me long term.
I would definitely be able to manually sync the SeaweedFS files with rsync to another location but from what I see it requires me to use their software to make sense of any structure. I might be able to mount it and sync that way, hopefully performance for that is not too bad.
Syncing like that and having more control over where the files are placed on the RAID is very cool.
Wouldn't syncing automatically every few days give you the same protection though?
Protection against if it happens and they have not noticed within those few days. Probably especially important if they leave the system running while on vacation.
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Where will the target be? Online or local? Rsync is really easy to use and the target files are browse-able. I could be too dense but I find online buckets aren't easily browse-able. Even a homemade NAS might be a good choice and it's easily scalable.
What platform?
Another user said it - what your asking for isn't a backup, it's just data transfer.
It sounds like you're looking for a storage backend that hosts all your data and can download data to the client side on the fly.
If your use case is Windows, Nextcloud Desktop may be what you looking for. I have a similar setup with the game clips folder. It detects changes and auto uploads then, while deleting less recently used data that's properly server side. This feature might be in Mac but I haven't tested it.
Backup wise, I capture an rsync of the nextcloud database and filesystem and store it on a different chassis. That then gets backed up again to a USB drive I can grab and run.
Nextcloud also supports external storage, which the server directly connects to: https://docs.nextcloud.com/server/latest/admin_manual/configuration_files/external_storage_configuration_gui.html
Hetzner storage box, rsync and a bash script
rsync, for sure. That's what I used when I had to migrate a 10TB datastore to a new machins.
Not.
Syncthing can do send only. It's pretty configurable.
But I'd probably use a cloud storage like storj.io, and tools like duplicati.
Borg. With rsync.net if you want to keep an off-site.
Is there a decent UI for borg, or is it all CLI?
Pika backup seems to be mentioned a lot.
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Restic with Backrest: https://forum.restic.net/t/backrest-a-cross-platform-backup-orchestrator-and-webui-for-restic/7069
Although I use ResticProfile atm with RClone to sync to backblaze B2
Save your files to a local s3 object storage mount, enable versioning for immutability and use erasure coding for fault tolerance. You can use Lustre or some other S3 software for the mount. S3 is great for single user file access. You can also replicate to any cloud based S3 for offsite.
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