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#1 2018-03-05 18:41:56

ua4000
Member
Registered: 2015-10-14
Posts: 97

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)

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#2 2018-03-05 19:38:50

ugjka
Member
From: Latvia
Registered: 2014-04-01
Posts: 1,071

Re: BTRFS - robustness question

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


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#3 2018-03-06 18:06:47

ua4000
Member
Registered: 2015-10-14
Posts: 97

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.

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