If the check_snmp_storage.pl
plugin for Nagios returns an error like
**ePN /usr/local/libexec/nagios/check_snmp_storage.pl: "Argument "v6.0.1" isn't numeric in numeric lt (<) at (eval 7) line 421,".
replace all occurrences of
if (Net::SNMP->VERSION < 4) {
with
if (Net::SNMP->VERSION lt 4) {
because it’s comparing strings, not numbers.