====== SSD or SAN ======

!!!!!! DONT



Convert duplicated system data, metadata and data to single copy only:
<code bash>
btrfs device usage /

btrfs balance start -sconvert=single -mconvert=single -dconvert=single / -f
# OR if data is already in single mode
btrfs balance start -sconvert=single -mconvert=single / -f

btrfs device usage /
</code>

Convert metadata and system data to 2 copies even if on SSD/NVM/SAN:
<code bash>
btrfs balance start -v -mconvert=dup -sconvert=dup / -f
</code>