uploading SNMP MIB files - discovery_snmp_mib vs. ecc_agent_mib?

[haldroid]

I'm trying to teach discovery about our HP Blade Chassis units. There are two modules where you can upload MIBs to ServiceNow and they point to different tables:

1. Discovery Definition > SNMP MIBs points to Discovery SNMP MIB [discovery_snmp_mib]
2. MID Server > SNMP MIBs points to MID Server MIB File [ecc_agent_mib]

What are the rules for when a MIB file should be uploaded to either of these? Thank you.

[haldroid]

We created table Blade Chassis [u_cmdb_ci_blade_chassis] as a direct extension of Hardware [cmdb_ci_hardware]. The table has two custom fields in addition to those inherited from Hardware. The new fields are Blade Count [u_blade_count] and MaxNumBlades [u_maxnumblades]. We use discovery to id the chassis and collect serial numbers for installed blades. I have been planning to write a script to update CI relationships between blades and chassis, but haven't got to it yet.

We have both Sun and HP blade systems. But it seems there is a bug with our version of the Sun chassis SNMP agent so that it wrongly gives the serial number of the chassis when queried for the number of an installed blade. So another project for a rainy day would be to do an SSH query instead. The chassis management firmware gets the serial numbers right when we use SSH.

With HP, the chassis units can be housed in another unit of equipment and relationships created at that level. But we don't use that sort of rack.

HTH.

[snoopy]

Hal, would you be prepared to share the details of the MIBs that you used and the probes and sensors that you have defined as well as the tables you have created,

Many thanks

[Dopdyel Tseten]

Hey Hal,

How were you able to discover the HP Enclosure. I am trying to discover HP enclosure but I keep getting stuck at the classification phase where i am getting the error <results error="Unsupported shell, '$0', and probe parameter 'allow_unsupported_shells' is set to 'false'. Supported shells are [tcsh, csh, ksh, sh, bash]" probe_time="2484" result_code="900000">

Thanks, Dop