Hugo Mills [off-list ref] writes:

On Sun, Jan 24, 2021 at 07:23:21PM +0100, Jakob Schöttl wrote:

quoted

Help please, increasing the filesystem size doesn't work.

When mounting my btrfs filesystem, I had errors saying, "no 
space left
on device". Now I managed to mount the filesystem with -o 
skip_balance but:

# btrfs fi df /mnt
Data, RAID1: total=147.04GiB, used=147.02GiB
System, RAID1: total=8.00MiB, used=48.00KiB
Metadata, RAID1: total=1.00GiB, used=458.84MiB
GlobalReserve, single: total=181.53MiB, used=0.00B

   Can you show the output of "sudo btrfs fi show" as well?

   Hugo.
 

Thanks, Hugo, for the quick response.

# btrfs fi show /mnt/
Label: 'data'  uuid: fc991007-6ef3-4c2c-9ca7-b4d637fccafb
        Total devices 2 FS bytes used 148.43GiB
        devid    1 size 232.89GiB used 149.05GiB path /dev/sda
        devid    2 size 149.05GiB used 149.05GiB path /dev/sdb

Oh, now I see! Resize only worked for one sda!

# btrfs fi resize 1:max /mnt/
# btrfs fi resize 2:max /mnt/
# btrfs fi show /mnt/
Label: 'data'  uuid: fc991007-6ef3-4c2c-9ca7-b4d637fccafb
        Total devices 2 FS bytes used 150.05GiB
        devid    1 size 232.89GiB used 151.05GiB path /dev/sda
        devid    2 size 465.76GiB used 151.05GiB path /dev/sdb

Now it works. Thank you!

quoted

It is full and resize doesn't work although both block devices 
sda and
sdb have more 250 GB and more nominal capacity (I don't have 
partitions,
btrfs is directly on sda and sdb):

# fdisk -l /dev/sd{a,b}*
Disk /dev/sda: 232.89 GiB, 250059350016 bytes, 488397168 
sectors
[...]
Disk /dev/sdb: 465.76 GiB, 500107862016 bytes, 976773168 
sectors
[...]

I tried:

# btrfs fi resize 230G /mnt
runs without errors but has no effect

# btrfs fi resize max /mnt
runs without errors but has no effect

# btrfs fi resize +1G /mnt
ERROR: unable to resize '/mnt': no enough free space

Any ideas? Thank you!

-- 
Jakob Schöttl
Phone: 0176 45762916
E-mail: jschoett@gmail.com
PGP-key: 0x25055C7F