Arch Linux

ua4000

Member

Registered: 2015-10-14

Posts: 420

BTRFS - robustness question

After a power outage I had a BTRFS: open_ctree failed. Nothing helped I had to reformat + restore from my backup :-)

Now I'm thinking about two options, which is better:

a) two partition, each with one BTRFS
My guess: If one of the FS is in status synced/flushed, the chances are high, that at least one is ok after a power outage.

b) two BTRFS subvolumes on one partition
My question: does a major failure on one subvolume during a power outage can affect the other BTRFS subvolume?

Thanks very much!

Last edited by ua4000 (2018-03-05 19:58:41)

ugjka

Member

From: Latvia

Registered: 2014-04-01

Posts: 1,808

Website

Re: BTRFS - robustness question

did you try btrfsck --init-extent-tree?

---

https://ugjka.net
paru > yay | webcord > discord
pacman -S spotify-launcher
mount /dev/disk/by-...

ua4000

Member

Registered: 2015-10-14

Posts: 420

Re: BTRFS - robustness question

Thanks for your answer, ugjka, yes I tried this too.
The incident is already solved - I did a restore from a backup.

The current topic is therefore more a overhaul question, what system setup is robuster.