On Sun, Jan 24, 2021 at 08:11:37PM +0100, Jakob Schöttl wrote:
>
> Hugo Mills <h...@carfax.org.uk> writes:
>
> > On Sun, Jan 24, 2021 at 07:23:21PM +0100, Jakob Schöttl wrote:
> > >
> > > 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!
Note that the new configuration is going to waste about 232 GiB of
/dev/sdb, because you've got RAID-1, and there won't be spare space to
mirror anything onto once /dev/sda fills up.
You can add a third device of 232 GiB (250 GB) or more to the FS
and that'll allow the use of the remaining space on /dev/sdb.
Hugo.
> > > 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!
>
>
--
Hugo Mills | Have found Lost City of Atlantis. High Priest is
hugo@... carfax.org.uk | winning at quoits.
http://carfax.org.uk/ |
PGP: E2AB1DE4 | Terry Pratchett
