ZFS Space Allocation Question

I had to break my 3-way mirror because the amount of available space was inadequate. Somehow my calculations for the total amount of required usable space was woefully off, but that is a separate discussion.

I now have a RAIDZ1, with no quotas or reservations, on this or any other dataset.

NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
pool 4.36T 833G 3.55T - - 0% 18% 1.00x ONLINE -

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