Selfhosted

60093 readers

830 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.
No spam.
Posts here are to be centered around self-hosting. Please ensure it is clear in your post how it relates to self-hosting.
Don't duplicate the full text of your blog or git here. Just post the link for folks to click.
Submission headline should match the article title.
No trolling.
Promotion posts require your active participation in selfhosting or related communities, or the post will be removed. No more than 10% of your posts or comments may be self-promotional, or your post will be removed. F/LOSS Exception: If your post is about a project that is completely open source & can be self-hosted in full without payment, and your account is at least 30 days old, your post is exempt from this rule as long as you continue to engage in comments.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 3 years ago

MODERATORS

curbstickle@anarchist.nexus

curbstickle_lw@lemmy.world

160

How do you effectively backup your high capacity (20+ TB) local NAS? (lemmy.world)

submitted 4 months ago* (last edited 4 months ago) by NekoKoneko@lemmy.world to c/selfhosted@lemmy.world

120 comments fedilink hide all child comments

I have a 56 TB local Unraid NAS that is parity protected against single drive failure, and while I think a single drive failing and being parity recovered covers data loss 95% of the time, I'm always concerned about two drives failing or a site-/system-wide disaster that takes out the whole NAS.

For other larger local hosters who are smarter and more prepared, what do you do? Do you sync it off site? How do you deal with cost and bandwidth needs if so? What other backup strategies do you use?

(Sorry if this standard scenario has been discussed - searching didn't turn up anything.)

you are viewing a single comment's thread
view the rest of the comments

[–] ShawiniganHandshake@sh.itjust.works 9 points 3 months ago

For me, I only back up data I can't replace, which is a small subset of the capacity of my NAS. Personal data like photos, password manager databases, personal documents, etc. get locally encrypted, then synced to a cloud storage provider. I have my encryption keys stored in a location that's automatically synced to various personal devices and one off-site location maintained by a trusted party. I have the backups and encryption key sync configured to keep n old versions of the files (where the value of n depends on how critical the file is).

Incremental synchronization really keeps the bandwidth and storage costs down and the amount of data I am backing up makes file level backup a very reasonable option.

If I wanted to back up everything, I would set up a second system off-site and run backups over a secure tunnel.