zpool-iostat(8) on FreeBSD
The text 3af5955060e3, as FreeBSD 13.5-RELEASE, FreeBSD 13.4-RELEASE, FreeBSD 13.3-RELEASE, FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE shipped it.
display logical I/O statistics for ZFS storage pools
Flags it lists
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-H -
-L -
-P -
-T -
-c -
-g -
-l -
-n -
-p -
-q -
-r -
-v -
-w -
-y