.I "-z, --zpool LABEL"
Print zpool containing LABEL.
.TP
+.I "-R, --role ROLE"
+Filter output based on role, i.e. mdt, ost, mgs.
+.TP
.I "CMD [ARGS...]"
Run one instance of \fICMD [ARGS]\fR for each label in parallel.
Only the local labels are used by default, but foreign, all, or file system