> You mentioned that the pool was somewhat full, can you send the output
> of 'zpool iostat -v pool0'? You can also try doing the following to
> reduce 'metaslab_min_alloc_size' to 4K:
> echo "metaslab_min_alloc_size/Z 1000" | mdb -kw
So just changing that setting moved my write rate from 40MB/s to 175MB/s.

That's a huge improvement. It's still not as high as I used to see on
this box- but at least now the array is useable again. Thanks for the

Any other tunables I should be taking a look at?

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