Soon you will receive a notice in the long service output if certain instances such as volumes get skipped because of the ‑‑exclude|‑X and ‑‑include|‑I switches.

Example:

./check_netapp_pro.pl Usage ‑H filer ‑o aggregate ‑X ^aggr0$
NETAPP OK - 2 aggregates checked. Max. used aggregate: aggr1 (12%).
1 instance has been skipped because of --include/--exclude settings.
aggr1: 12% (OK)
aggr2: 10% (OK)
<| perfdata follows here>

This applies to all checks that can monitor multiple instances at once (overall checks).