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3answers
3k views

How to monitor BTRFS filesystem raid for errors?

I saw some documentation on a daemon that can execute a program/script for various BTRFS events, but I cannot find it anymore. How can I have a script/program be executed on a drive failure for a ...
11
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2answers
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btrfs: HUGE metadata allocated

I have a 256GB SSD disk on which I converted my ext4 root FS to btrfs. I erased the ext4 backup subvolume, enabled compression and defragmented recursively to enable it on all files. btrfs fi df / ...
2
votes
1answer
2k views

GRUB broken after conversion to btrfs

First off, yes, I did, in fact, suspect that changing my filesystem from ext4 to btrfs would break GRUB and fstab. Now, here's what happened. I converted the filesystem seamlessly to btrfs and that ...
10
votes
3answers
9k views

How to undelete files on btrfs partition?

How do I undelete (recover) a deleted file on a btrfs partition? I have not taken a snapshot yet, so I can't use that feature. I know there are some tools for other Linux file systems, but google ...
3
votes
2answers
2k views

What is Btrfs's disk space caching?

I noticed in my syslog that BTRFS reports enabling "disk space caching". What is Btrfs's "disk space caching"?
3
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1answer
104 views

Understanding metadata usage behavior in a newly converted btrfs filesystem

I have a 5 TB hard drive with 3.3 TiB (as reported by du) of media files in 119k files and directories; the average file size was about 28 MiB. I converted the ext4 partition into btrfs with btrfs-...