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Latest revision as of 10:17, 22 July 2025
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Message definition (Btrfs )
=== Metadata ===
=== Metadata ===
It is rarely recommended to include blocks with metadata in a balance. It is advantageous, in exceptional cases, if the following conditions are currently met:
You can check with:
{{RootCmd|command=sudo btrfs fi us /|grep 'Meta.*Size'}}
{{ic|Metadata,RAID1: Size:9.00GiB, Used:6.58GiB (73.09%)}}
* Several GB of metadata are present in your filesystem (''6.6 GB present, 9 GB used'')
* This metadata is poorly distributed (''73%'')
* Significantly more than one full GB could become free (9 GB - 6.6 GB ==> ''2.4 GB could become free'')
The command is then:
{{RootCmd|command=btrfs balance start -musage=95 /}}
Btrfs had to move 9 GB of metadata to free up 1 GB !
{{ic|Metadata,RAID1: Size:8.00GiB, Used:6.58GiB (82.20%)}} Metadata It is rarely recommended to include blocks with metadata in a balance. It is advantageous, in exceptional cases, if the following conditions are currently met:
You can check with:
root # sudo btrfs fi us / COPY TO CLIPBOARD
Metadata,RAID1: Size:9.00GiB, Used:6.58GiB (73.09%)
Several GB of metadata are present in your filesystem (6.6 GB present, 9 GB used )
This metadata is poorly distributed (73% )
Significantly more than one full GB could become free (9 GB - 6.6 GB ==> 2.4 GB could become free ) The command is then:
root # btrfs balance start -musage=95 / COPY TO CLIPBOARD
Btrfs had to move 9 GB of metadata to free up 1 GB !
Metadata,RAID1: Size:8.00GiB, Used:6.58GiB (82.20%)