10 Replies Latest reply on Oct 18, 2019 2:26 AM by Robert Karin

ADDM Discovery - Container contains all related LPARs but not all host members

Edison Santos Jun 27, 2019 7:40 AM

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Hi Guys!

Here I'm again with new questions.

I have a Container IBM Power8 in my environment.

It was nicely Discovered through the HMC console, but, looking inside its CI, although I can see all LPARs listed as a container "detail" ("IBM HMC Managed POWER LPAR" details), some servers IBM OS/400 V7R3M0, examined using SNMP V1, are not related as a container members, but all others servers (Linux, Unix, VIOS) are listed correctly as container members, and their names are linked to their hostnames CIs.

I observed that these servers (OS/400), all of them, don't have the item "Host Container" on their CI's details.

Does the MIB have this information as one specific OID? Are the Discovery SCAN extracting this information?

Does anybody here have experience by Discovering IBM Power "#" with OS/400 as one of its LPARs?

Can sameboby give me some help?

Best regards,

1. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Lisa Keeler Jun 27, 2019 10:05 AM (in response to Edison Santos)

Hi Edison,

There is certain information that must be discovered in order to relate the Hosts to the Host Container. Often a serial# (or other unique information) is required to relate the Host to Host Container.

SNMP discovery probably doesn't find a serial#. (You can check).

See if you see some unique information found on the Linux (good) systems -vs- the OS/400 SNMP-discovered systems.

You would have to somehow change the OS/400 discovery so that we discover that uniquely identifying data. (possibly through a custom pattern triggered by the snmp discovery, or by using a different discovery method if possible).
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2. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Edison Santos Jun 28, 2019 2:55 PM (in response to Lisa Keeler)

Hi Lisa Keeler, thanks for your attention and suggesting!

I was checking my data, and you are right. The AS/400 Server CI doesn't have a serial number associated.

In my web research, I found an IBM's SNMP document and I didn't find any reference about OID of "Chassis Serial Number" on AS/400. I found this OID for a "TS3500 tape library", and I don't know if this OID is a standard for all products of IBM.

For the AS/400, they say that this number can be obtained through a terminal command, and also something said about a possibility to connect on it through an SSH connection.

Does BMC have any document about this? Any other case in the world? Any instruction of how to put this number in a CI? Do you think a better idea to open a support case.

Best regards,
ES
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3. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Lisa Keeler Jun 28, 2019 3:43 PM (in response to Edison Santos)

Hi Edison,

You can perform a "Device Capture" of the AS/400 using SNMP, and then open the zip file to see for yourself if there is something like a serial# showing in there.

It is helpful to learn the serial# (through terminal command or whatever), and then search the largest file inside the Device Capture for that serial#. If you see it in there, it will show you the OID, and then you could write a custom pattern to get that OID and set serial based on that OID.

Normally, I would say that, instead of a custom pattern, you could open a support ticket (to add serial# to the discovery), but I don't think AS/400 is actually considered a supported device. It is not in the list shown in the GUI for "IBM SNMP Devices".
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4. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Edison Santos Jul 1, 2019 11:36 AM (in response to Lisa Keeler)

Hi Lisa, thanks again for your support!

Sorry about my poor knowledge about this action, but I didn't find how to do a "Device Capture" fo an AS/400.

This endpoint is an LPAR of an IBM Power 8, and it is an OS/400 system, already discovered by the scan. Even accessing this CI, I couldn't any option to force a device capture.

What option on UI that I must use? I was looking for it on "Administration > Device Captures", "Model > Devices" and inside the CI, but I couldn't find a way to do this capture.

Could you help me once again?

Regards,
ES
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5. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Lisa Keeler Jul 1, 2019 11:53 AM (in response to Edison Santos)

Hi Edison,

It is possible that you can't capture the device information for your system..

But, here is the doc: Capturing SNMP devices - BMC Discovery 11.3 - BMC Documentation

If that doesn't work, there are other ways to get the information. Let me know.

Lisa
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6. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Edison Santos Jul 2, 2019 2:28 PM (in response to Lisa Keeler)

Hi Lisa, I've tried to do that, but it is not working.

The device capture is finishing with error: "SNMP: Cannot perform operation, General Error"

Port Scan information captured
   Telnet banner:
         HTTP Server header: Apache
          Failed to read HTTPS HEAD
          FTP banner: 220-QTCP at xxxxi5PP01.brs.comp.emp.
          220 Connection will close if idle more than 5 minutes.
          OS Scan information captured
          sysDescr: IBM OS/400 V7R3M0
          sysObjectID: 1.3.6.1.4.1.2.6.11
          Using MIB Profile: Generic
          Dumping range: Start of MIB to End of MIB
          ERROR: SNMP: Cannot perform operation, General Error

Regards,
ES
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7. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Lisa Keeler Jul 4, 2019 5:41 AM (in response to Edison Santos)

Hi Edison,

You could try snmpWalk from the appliance command line.

I think the command is located here:
/usr/tideway/snmp++

You can open a ticket for further help.

Lisa

Sent from my iPhone
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8. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Edison Santos Jul 5, 2019 1:00 PM (in response to Lisa Keeler)

Hi Lisa,

I did the device capture to another OS400 instance. That one that I was not able to do was for some problem on SNMP (probable a service down, I will check it with iSeries support team posteriorly).

Analyzing the export file, I couldn't find any record associated with a chassis serial number.

Do you think exist some option to associate this OS (LPAR) to its respective container? Do you recommend a BMC ticket?

Regards,
ES
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9. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Lisa Keeler Jul 5, 2019 1:13 PM (in response to Edison Santos)

OK, so the SNMP device capture doesn't show the serial number.

There may not be any way to associate the device to the container.

But, you probably should open a ticket to further investigate.
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10. Re: ADDM Discovery - Container contains all related LPARs but not all host members

Robert Karin Oct 18, 2019 2:26 AM (in response to Lisa Keeler)

Hello Lisa,
do you have Serial number for AS400? I also have the same problem?
Snmp doesn't show serial for all AS400 servers.
Please share me informatino if you resolve this?

Thanks in advance,

Robert
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