ZFS dataset stats

Reply: Alan Somers : "Re: ZFS dataset stats"
Reply: Oleg Ginzburg : "Re: ZFS dataset stats"
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From: Zane C. B-H <v.velox_at_vvelox.net>
Date: Fri, 15 Jul 2022 05:05:17 UTC

So was just looking and for some reason nread etc for the ZFS storage 
stats.

Below is a example of a ZFS dataset being used by CBSD to store a raw 
disk image,
one that is running currently, but for some reasonn the R/W stats don't
seem actually update.

kstat.zfs.storage.dataset.objset-0x1d41.nread: 0
kstat.zfs.storage.dataset.objset-0x1d41.reads: 0
kstat.zfs.storage.dataset.objset-0x1d41.nwritten: 0
kstat.zfs.storage.dataset.objset-0x1d41.writes: 0
kstat.zfs.storage.dataset.objset-0x1d41.dataset_name: 
storage/debian10_test/dsk1.vhd

Is there any way to get ZFS to actually keep these up to date for use 
cases
like this?