Discovery probes and classifiers for IBM mainframes.

[Jourdan Rothsc1]

i'm new to servicenow and our environment include couple of IBM mainframes, we are trying to discover them using the snmp protocol and default probes and never successful, every time i run the discovery it gives me "active and couldn't classify ", can someone let me know the best process to discover mainframe if there is any out of the box discovery process available or any custom built discovery probes and classifiers for IBM mainframes.

[Jourdan Rothsc1]

Hi Dave,

I'm trying to discover mainframe with SNMP v1, community string works and I'm able to retrieve all the required OID's from SNMP walk.  I'm attaching the input payload form the snmp walk where it reads the sysDescr, but the discovery fails stating no mid's to trigger, i have gone through the snmp OID's and found IBM 0s/390 but it does not have a classifier attached to it, when i look in the SNMP classifications there is no classifier for the mainframe, i'm attaching all the screenshots, can anyone let me know if i need to create a custom snmp classifier if so what is the process, or i'm looking in the wrong place,

Jourdan

[DaveHertel]

Hi -- you mentioned "...discovery fails stating no mid's to trigger,"  this refers to the IP's of the target (i.e. mainframe or whatever) vs. the MID servers available to connect to those IPs.  If your MIDS are restricted by the IP ranges they can/can't get to, then its common to see that error.

Be sure at least 1 of your MIDs have the IP ranges defined that allow it to reach out to scan the target device (aka mainframe).   

This is a separate issue from all the SNMP OID issues... the MID must be able to get to the MF 1st.

RE:  OS/390... i don't know for sure, but I think I remember that their isn't an OOB probe/pattern for it.  I could be wrong... just guessing

Hope this is somewhat helpful.........

[Martin Grosskop]

Hi Jourdan,

According to the documentation, the z/OS pattern requires SSH credentials.

Also not that it is a pattern - not a probe.

[Jourdan Rothsc1]

Presently today the Mainframe is not configured with SSH just SNMP v3. We have requested the team to enable SSH Daemon so we can proceed with testing. More to come once the request is approved.

Jourdan