How to monitor your storage system with SNMP

If you enable SNMP in Data ONTAP, the SNMP managers can query your storage system's SNMP agent for information. The SNMP agent gathers information and forwards it to the managers by using the SNMP protocol. The SNMP agent also generates trap notifications whenever specific events occur.

For diagnostic and other network management services, Data ONTAP provides an SNMP agent compatible with SNMP versions 1 and 3. SNMPv3 offers advanced security by using the pass phrases and encryption. SNMPv3 supports the MIB-II specification and the MIBs of your storage system. The following MIB-II groups are supported:

System
Interfaces
Address translation
IP
ICMP
TCP
UDP
SNMP

Starting with Data ONTAP 7.3.1, IPv6 (RFC 2465), TCP (RFC 4022), UDP (RFC 4113), and ICMP (RFC 2466) MIBs, which show both IPv4 and IPv6 data, are supported.

Note: Transmission and EGP MIB-II groups are not supported.

Types of SNMP traps in Data ONTAP
SNMP traps capture system monitoring information in Data ONTAP. There are two types of traps in Data ONTAP: built-in and user-defined.
About the Data ONTAP MIBs
A MIB file is a text file that describes SNMP objects and traps. Data ONTAP provides two types of MIB. MIBs are not configuration files. Data ONTAP does not read these files and their contents do not affect SNMP functionality.