It certainly is. Here is the output from the MIB file on the Support site.
Sis snmp gets are prefaced by sis.<sisdescription>. So the call would be sis.sisstate (I think)
| sisState OBJECT-TYPE |
| SYNTAX INTEGER { |
disabled(1),
enabled(2)
MAX-ACCESS read-only
STATUS current
| DESCRIPTION |
|
|
|
| "Indicates whether SIS is enabled on the |
|
|
|
| volume or not." |
| ::= { sisEntry 3 } |
Mapping that to an OID by using the traps.dat file you get .1.3.6.1.4.1.789.1.23.2.1.3.1 for the sis state.
I dont have any SNMP monitoring tools or even a linux box to test on so let me know how this works for you. I can provide more clarification if needed
All of the information above was located here:
https://kb.netapp.com/support/index?page=content&id=1011110
http://support.netapp.com/NOW/download/tools/mib/#filer - MIB file and Trap File (MIB file lists all SNMP Optios the filer has, trap file lists the OID number corresponding to the SNMP option in the MIB file. )