Il 10-09-2017 01:12 Dave Chinner ha scritto:

Probably not. And, worse, you open up the possibility of torn
"single sector" writes if the underlying device isn't a native 4k
sector device.

Good catch, I was not thinking on how sectsize=4K could interact with 
non-4K disks.

However, if using only 4K disks below the thin volumes/ZVOLs, should I 
manually set sectsize=4K?
Or, again, I should stick with the default and stop worring?

Thanks.

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