Things to Do When Btrfs Volume Blancing Failed to Start
(Doc ID 2639542.1)
Last updated on FEBRUARY 16, 2020
Applies to:Linux OS - Version Oracle Linux 6.7 with Unbreakable Enterprise Kernel [4.1.12] and later
When btrfs volume was not managed properly, it could run out of space with data unbalanced, and sometimes attempting to start balance could fail with error.
# touch /path/to/btrfs/tmp.txt
touch: cannot touch ‘/path/to/btrfs/tmp.txt’: No space left on device
# btrfs balance start -dusage=5 /path/to/btrfs
ERROR: error during balancing '/path/to/btrfs': No space left on device
There may be more info in syslog - try dmesg | tail
BTRFS info (device sdc): 3 enospc errors during balance
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document