How to monitor your storage system with SNMP
You can configure SNMP to monitor your storage system to avoid issues before they occur and to respond to issues when they occur. Managing SNMP involves configuring SNMP users and configuring SNMP traphosts for specific events.
SNMP is enabled by default on your storage system. SNMP network management workstations or managers can query your storage system's SNMP agent for information. The SNMP agent gathers information and forwards it to the SNMP managers. The SNMP agent also generates trap notifications whenever specific events occur. The SNMP agent on the storage system has read-only privileges—that is, it cannot be used for any set operations or for taking a corrective action in response to a trap. Data ONTAP provides an SNMP agent compatible with SNMP versions v1, v2c, and v3. SNMPv3 offers advanced security by using passphrases and encryption.
- Types of SNMP traps
SNMP traps capture system monitoring information that is sent as an asynchronous notification from the SNMP agent (storage system) to the SNMP manager. There are three types of SNMP traps: standard, built-in, and user-defined.
- What MIBs are
A MIB file is a text file that describes SNMP objects and traps. MIBs describe the structure of the management data of the storage system and they use a hierarchical namespace containing object identifiers (OID). Each OID identifies a variable that can be read by using SNMP.
- What the SNMP agent does
The storage system includes an SNMP agent that responds to queries and sends traps to network management stations.
- How to configure the SNMP agent
You need to configure the SNMP agent on your storage system to set SNMP values and parameters.
- User-defined SNMP traps
If the predefined built-in traps are not sufficient to create alerts for conditions you want to monitor, you can create user-defined traps in Data ONTAP.