Re: Cannot balance FS (No space left on device)

["ojab //" <ojab@ojab.ru>]

On Fri, Jun 10, 2016 at 9:00 PM, Henk Slager <eye1tm@gmail.com> wrote:
> I have seldom seen an fs so full, very regular numbers :)
>
> But can you provide the output of this script:
> https://github.com/knorrie/btrfs-heatmap/blob/master/show_usage.py
>
> It gives better info w.r.t. devices and it is then easier to say what
> has to be done.
>
> But you have btrfs raid0 data (2 stripes) and raid1 metadata, and they
> both want 2 devices currently and there is only one device with place
> for your 2G chunks. So in theory you need 2 empty devices added for a
> balance to succeed. If you can allow reduces redundancy for some time,
> you could shrink the fs used space on hdd1 to half, same for the
> partition itself, add a hdd2 parttition and add that to the fs. Or
> just add another HDD.
> Then your 50Gb of deletions could get into effect if you start
> balancing. Also have a look at the balance stripe filters I would say.

Output of show_usage.py:
https://gist.githubusercontent.com/ojab/850276af6ff3aa566b8a3ce6ec444521/raw/4d77e02d556ed0edb0f9823259f145f65e80bc66/gistfile1.txt
Looks like I only have smaller spare drives at the moment (largest is
100GB), is it ok to use? Or there is some minimal drive size needed
for my setup?

//wbr ojab