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You just finished setting up all your services and it works fine - how do you now prepare for eventual drive failure? (kbin.social)

submitted 2 years ago by Kaldo@kbin.social to c/selfhosted@lemmy.world

58 comments fedilink hide all child comments

I know that for data storage the best bet is a NAS and RAID1 or something in that vein, but what about all the docker containers you are running, carefully configured services on your rpi, installed *arr services on your PC, etc.?

Do you have a simple way to automate backups and re-installs of these as well or are you just resigned to having to eventually reconfigure them all when the SD card fails, your OS needs a reinstall or the disk dies?

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[–] twei@feddit.de 2 points 2 years ago (2 children)

I know, but every time I had to do that it felt like it's a jank solution. If you have a raspberry pi or smth like that you can also set it up as a qdevice.

...and if you're completely fine with how it is you can also just leave it like it is

[–] ikidd@lemmy.world 3 points 2 years ago

So I started to write a reply that said basically that I was OK doing that manually, but thought that "hell, I have a PBS box on the network that would do that fine". So it took about 3 minutes to install the corosync-qdevice packages on all three and enable it. Good to go.

Thanks for the kick in the ass.

[–] ikidd@lemmy.world 2 points 2 years ago (1 children)

So since I now had a "quorate" cluster again, I thought I'd try out HA. I'd always been under the impression that unless you had a shared storage LUN, you couldn't HA anything. But I thought I'd trigger a replication and then down the 2nd node just as a test. And lo and behold, the first node brought up my OPNsense VM from the replicated image about 2 minutes after the second node lost contact, and internet starts working again.

I'm really excited about having that feature working now. This was a good night, thank you.

[–] twei@feddit.de 2 points 2 years ago (1 children)

If you need another thing to do, you could try to make your opnsense HA and never have your internet stop working while rebooting a node. It's pretty simple to set up, you might finish it in 1-2 evenings. Happy clustering!

[–] ikidd@lemmy.world 2 points 2 years ago

I'll look into that. I did see the option in opnsense once upon a time but never investigated it.