Question:

Data Domain sent and I detected the following OID’s SNMP Trap at the same time when snmpd of Data Domain started.

1.3.6.1.6.3.1.1.5.1

The OID doesn’t exist in Data Domain MIB and it shows “coldStart” but DDOS’s rebooting wasn’t confirmed at that time. As the specification, General traps are sent which don’t exist in Data Domain MIB Reference, because I understand DDOS is Linux based.

Answer:

Data Domain supports the standard MIB-II other than Data Domain MIB. Data Domain also sends SNMP traps using SNMP v2c and v3. So it can be thought that the OID: 1.3.6.1.6.3.1.1.5.1 was sent by this.

The following is the excerpt of the document at “SNMP management” on page 103 of “EMC Data Domain Operating System 5.7 Administration Guide”.

To monitor Data Domain systems using SNMP, you will need to install the Data Domain MIB in your SNMP Management system. DD OS also supports the standard MIB-II so you can also query MIB-II statistics for general data such as network statistics. For full coverage of available data you should utilize both the Data Domain MIB and the standard MIB-II MIB.

＊snip＊

Data Domain systems can send SNMP traps (which are alert messages) using SNMP v2c and SNMP v3. Because SNMP v1 traps are not supported, EMC recommends using SNMP v2c or v3.

Author: Hiroki Kobayashi