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Questions tagged [btrfs]

btrfs is a B-tree based, copy-on-write filesystem for Linux. It's main features include snapshots, checksumming of data and filesystem level RAID support. It's similar to ZFS.

Btrfs tag should be used with all questions referring to usage of features specific to this filesystem:

  • defragmentation
  • resizing and addition and removal of block devices
  • it's RAID implementation
  • snapshot creation and usage

Also see:
for a similar copy-on-write filesystem.
http://btrfs.wiki.kernel.org for detailed information about the filesystem

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How to move a subvolume to a new drive in btrfs?

I am trying to move my /srv, /var/lib/mysql and /home directory to another drive ( a bigger one with RAID1). I did some research on how to go about doing this and I kind of did most of it. However, after all the content is copied over, I am unable…
FlowRaja
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Linux ext4 incremental backup tool produces individual files not one

I want to backup ext4 files with size (<100MB) as they are, NOT in one single archive file (like with dump or tar). Can you recommend me a tool that keeps the directories/files structure in the destination ? I am aware of rsync with --link-dest.…
Paul Rusu
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BTRFS: Multiple copies of metadata on different physical drives

I have rather big btrfs volume assembled as a single drive using different physical size drives. The data is single, the metadata is raid1. Still all the (meta)data is within a single volume. I understand that if one of the physical drives within…
agatek
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BTRFS Multiple Initiator Access

Can't seem to find this noted anywhere. Is BTRFS capable of being accessed over iSCSI by two hosts at once? (Think how esxi hosts access same datastores)
Nicholas Tripp
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Recovering a btrfs partition

I'm attempting to recover (what I'm told is) a btrfs partition from a RAID5 array and I'm a bit stuck on the next step... The reason I mention it was RAID5 is because the array way deleted in the controller software (!). I was able to recreate…
16shells
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Best software raid /filesystem for samba on linux

I am running ubuntu 16.04 server and need to store files for a samba file server on a software raid. There are 4 500GB SSDs and stability / redundance / iops are of utmost importance. I tried running zfs on linux for a while but samba acl settings…
user19760
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Ubuntu + ZFS vs Rockstor

I have a personal fileserver at home with 6 HDs: 1 500 GB one for the OS 1 4 TB one for temporary data four 2 TB ones that we want to configure in some sort of RAID 5 fashion It looks like I have two options: Ubuntu with the four 2 TB drives…
IMTheNachoMan
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btrfs formatted partion not mounting from fstab

I have this new mageia 4 setup with some btrfs partitions. My root "/" is on btrfs, working fine. from fstab: UUID=b2b0263e-a04a-4bd7-86d7-d2ec19a90b84 / btrfs relatime 0 0 then I have a different btrfs formatted partition for steam data on…
lievendp
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