> ZFS blocksize is dynamic, power of 2, with a max size == recordsize.

Minor clarification: recordsize is restricted to powers of 2, but
blocksize is not -- it can be any multiple of sector size (512 bytes).
For small files, this matters: a 37k file is stored in a 37k block.
For larger, multi-block files, the size of each block is indeed a
power of 2 (simplifies the math a bit).

Jeff
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