Using the command below sudo btrfs filesystem defragment -v -r -czlib -f / defragment an BTRFS partition root using compression zlib. in fstab is possible select zlib compression 1 to 9. Strange detail is that defrag command allow to select zlib, but not has any information if is possible select low or high compression. trying to use czlib:9 or c zlib:9 result in error and not will run the command. If using defrag command will use zlib compression settings from fstab ? will use maximum compression ? If not how is possible configure to use maximum compression ?
Thanks for reply.
