Il giorno mer 29 set 2021 alle ore 18:39 Forza [off-list ref] ha scritto:

Maybe autodefrag mount option might be helpful?

It was enabled since beginning.

Your problem sounds like partially filled extents and not metadata related. Typical scenarios where that happens is with some databases and vm images. A file could allocate much more space than actuall data due to this. Use 'compsize' to determine this.

I confirm is one big file with random writes. I agree about extents.
But I'm quite confident the same approach can fix the original question.

Ciao,
Gelma