Hello Karl and all, On 2016-01-26 T 22:48 +0100 Karl Ove Hufthammer wrote:
Chris Murphy wrote:
[root@f23m images]# btrfs balance start -dusage=15 / Done, had to relocate 25 out of 54 chunks
This took about 20 seconds on an SSD.
I did something similar, ‘btrfs balance start -dusage=10’, on a HDD a few days ago. That took > 5 hours! And the disk wasn’t even close to full – around 80 GiB free (out of about 1,8 TiB).
well, this means the filesystem is filled for about 96%, and this is really full. All known filesystems start to become "nervous", if filled more than 90%. With respect to the 5 hours: yes, if you run a balance the first time and on a full filesystem, this may happen, unfortunately. The scripts in the "btrfsmaintenance" package are meant to run regularily, and doing so will prevent any balance job running long. Starting btrfsmaintenance runs with an empty filesystem will lead to happy experience. So long - MgE -- Matthias G. Eckermann, Director Product Management SUSE Linux Enterprise SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org