Error: Too many disks specified

We have many OCFS mounts on a db server and I want to track disk space
for fear a DB can crash when disk space has run out. When I add all
the mountpoints to the snmpd.conf and restart snmpd I get the following
errors in the logs:

Apr 11 10:26:32 sakhmet1 ucd-snmp[12911]: /etc/snmp/snmpd.conf: line
57: Error: Too many disks specified.
Apr 11 10:26:32 sakhmet1 ucd-snmp[12911]: /etc/snmp/snmpd.conf: line
57: Error: ^Iignoring: /db164 10%

Any thoughts?