Disk I/O SNMP monitoring cluster mode

Hello there,

I am having trouble monitoring disk read/write + network received/sent via SNMP on cluster mode.

Looking into the documentations, I notice that there are some OIDs that will meet my requirement. However, they are not supported under cluster mode.

miscNetRcvdKB 1.3.6.1.4.1.789.1.2.2.2.0
miscNetSentKB 1.3.6.1.4.1.789.1.2.2.3.0
miscHighDiskReadBytes 1.3.6.1.4.1.789.1.2.2.15.0
miscLowDiskReadBytes 1.3.6.1.4.1.789.1.2.2.16.0
miscHighDiskWriteBytes 1.3.6.1.4.1.789.1.2.2.17.0
miscLowDiskWriteBytes 1.3.6.1.4.1.789.1.2.2.18.0

Note: no results are returned when I run a snmpwalk on them whilst other OIDs are working such as:

nodeName 1.3.6.1.4.1.789.1.25.2.1.1

Thanks!