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Re-Balancing BTRFS to Free Disk Space (Doc ID 2300137.1)

Last updated on AUGUST 04, 2018

Applies to:

Linux OS - Version Oracle Linux 7.0 and later
Linux x86-64

Symptoms

The BTRFS filesystem has filled on the server,  and thus some space needs to be freed up on it. There is a re-balancing feature available in btrfs. The primary purpose of the re-balance feature is to spread block groups across all devices so they match constraints defined by the respective profiles and this is done when btrfs need re-balancing to fix issues with chunks being un-balanced.



Changes

 No Change

Cause

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