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submitted 1 year ago by Sim@lemmy.nz to c/selfhosted@lemmy.world

I'm running Docker on Ubuntu server; around 50 containers running, most admin via Portainer. Configuration files and small databases for container applications are stored on the local SSD, media and larger files are stored on a NAS.

NAS data and the container folders are backed up.

I have a second identical machine doing nothing. What would you recommend researching to add resilience to this setup? Top priority is quick and easy restoration should the SSD fail - everything else is relatively easy to replace.

I'll create an SSD RAID but I like the idea of a second host.

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[-] mertn@lemmy.world 5 points 1 year ago

I put my dockers on mirrored zfs pool and have enough spare parts in case of breakdowns.

[-] Sim@lemmy.nz 1 points 1 year ago

So you have Docker itself on a single host (with parts) and all the containers in fault tolerant storage, and the most work you'd have to do in the event of host drive failure is to re-install the OS and Docker itself?

[-] mertn@lemmy.world 2 points 1 year ago

I have the OS (with docker) mirrored too. So no reinstalling, just disk or other parts swapping in case of a failure. I hope. A mothboard swap is the worst downtime. I have done this and needed to fiddle with network settings due to changed net interface name to get the server up again.

this post was submitted on 24 Sep 2023
35 points (94.9% liked)

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