Hello,
I am looking for recommendations for a service provider of immutable backup that has options for a homelab user.
My research has led me to services with expensive options, or no pricing at all unless you ask for a quote.
Thank you
How immutable do you need?
S3 offers a flag that prevents modification or deletion for a set period, and afaik basically every S3-compatible provider offers that.
I use that along with a lifecycle rule to maintain my backup buckets on iDrive.
If you need a ‘you cannot touch this and the provider has no way of allowing it’ then you’re talking specialized corporate talk-to-a-sales-person-for-a-quote, as you found out.
Edit: if you don’t need cloud, there’s options for WORM media from the humble BluRay to fancy SSDs that don’t allow deletion.
My goal is that if for whatever reason, my homelab is compromised, I will be able to at least restore my important data.
If i can modify the data on the other end, but cannot from my proxmox, then its fine.
I would like a offsite solution in the future, but for now it’s going to be a cloud for data blob only.
Backblaze B2 has the option: https://www.backblaze.com/docs/cloud-storage-object-lock
Cheap storage too.
I use backblaze storage with Kopia, which supports using object lock. Every time a backup is made the objects for it are locked for a configurable amount of time. I use 30 days, so an attacker would have to compromise my backup software for a month before being able to erase my backups.
I like the thought of having timed backups to keep the costs lower by pruning the olds backups.
I use Backblaze B2, but stored in an encrypted Restic container, set up using this guide:
Restic has been great for automating backups, and even letting me mount the encrypted storage to grab individual files. I like doing it this way since I don’t have to trust Backblaze isn’t reading my data - I know for sure that they can’t.
Performance of storage that is both remote and encrypted is about what you would expect, but I don’t need access to the data unless something bad happens.
How much data are we talking about?
A free mega.nz account should be fine for everything except family fotos and legally obtained music/movies.
