If you look inside the /etc/mib/netapp.mib file, all of the descriptions are included. Then you can cross reference the OIDs listed in the /etc/mib/traps.dat file. These files are found on each controller and as mentioned above are OnTap specific.
::EXAMPLE::
v3ccFsinfos OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of NFS Version 3 calls received
for the NFSPROC3_FSINFO (Get Static File
System Information) procedure, that did not
result in the filesystem blocking to read
from disk, since the last time the statistics
were cleared."
Link to the KB doc talking about cross referencing the two. https://kb.netapp.com/support/index?page=content&id=1010045