How to get metrics using SNMP MIB

We have remote monitoring of our storage devices with the Nimsoft tool. Our Nimsoft technical support team requested that we enable SNMP and provide the MIB's for our Isilon cluster. They were able to load the MIB and sent us back approximately 9k objects that can be queried. They are asking us to give them a list of what we want monitoring.

All I'm interested in is performance (basic IOPs) and other storage metrics. But the list they gave us to choose from has somewhat cryptic names. Here is a short example:

Any help deciphering this list greatly appreciated.

Thanks.