On 2020-05-02 1:25 a.m., Phil Karn wrote: > I'm still not sure I understand what "balance" really does. I've run > it quite a few times, with increasing percentage limits as > recommended, but my drives never end up with equal amounts of data. > Maybe that's because I've got an oddball configuration involving > drives of two different sizes and (temporarily at least) an odd number > of drives. It *sounds* like it ought to do what you describe, but what > I read sounds more like an internal defragmentation operation on data > and metadata storage areas. Is it both? BTRFS tries to balance the free space, not the Used space. When the drives are balanced, the Unallocated space across the drives should be even.
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