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....73TB used 1.55TB path /dev/sdc devid 3 size 2.73TB used 0.00 path /dev/sdb Btrfs v0.20-rc1-253-g7854c8b # btrfs fi df /mnt/data Data: total=3.79TB, used=3.79TB System: total=4.00MB, used=420.00KB Metadata: total=6.01GB, used=4.87GB When running # btrfs balance start -dconvert=raid5 -mconvert=raid5 /mnt/data I get ERROR: error during balancing ''/mnt/data'' - Invalid argument There may be more info in syslog - try dmesg | tail dmesg | tail says: btrfs: unable to start balance with target data profile 128 Isn''t it possible to convert raid level to raid5? Th...

Hi. I''m considering an imminent switch from ext4 to btrfs and I''m hoping that someone can lend me advice before I do something unsupported. I have a software raid 6 array configured via mdadm. It was sitting at 8 x 3TB until I recently doubled that, grew the array and found that ext4 doesn''t want to resize. So, I''m looking to: 1. convert from ext4 to btrfs

Hello, today I wanted to remove one drive from raid1, and people at #btrfs advised me to use ''-dconvert=single'' before ''btrfs device delete''. I thought of adding ''-mconvert=dup'' too, but the kernel does not let me do that. It looks like ''dup'' is disallowed for an array of multiple devices. So, to go back to a single-drive (single/dup) setup, should I go through having the metadata with ''single'' profile? I can''t u...

Welcome, I''ve been using btrfs for over a 3 months to store my personal data on my NAS server. Almost all interactions with files on the server are done using unison synchronizer. After another use of bedup (https://github.com/g2p/bedup) on my btrfs volume I experienced huge perfomance loss with synchronization. It now takes over 3 hours what have taken only 15 minutes! File