About the Essentials Management Pack for monitoring network devices in OpsMgr 2007

The following question was posted at Cameron’s blog, cameronfuller.spaces.live.com:

I bought your book "SCOM Unleashed" , and I find it very useful. Thanks for that.

I tried to followed your advice by importing the SCE MP for the network devices for monitoring Cisco switches and routers. The import is successful, but I am unable to populate it. It seems that there is an error related to the discovery of the SNMP interfaces. Here is the error I see in OpsMgr event log:

Loading managed module type in assembly "Microsoft.EnterpriseManagement.SCE.Modules" with type name "Microsoft.EnterpriseManagement.SCE.Modules.SnmpInterfaceDiscovery" failed with error code "80FF0001" in rule "Microsoft.SystemCenter.NetworkDevice.Interface.Discovery" running for instance "10.160.100.34" with id:"{3A9BC6C5-AA0B-353B-2670-438AD4FC97F1}" in management group "DimensionDataEurope". This may be because the type or assembly could not be found or the type does not have the MonitoringModuleAttribute.

I tried it on a SCOM 2007 without SP1 on a 32 bit OS and on a SCOM 2007 with SP1 on a 64bit machine with the same issues.

I seen in the forums that I am not the only one having this issue, see: http://www.microsoft.com/communities/newsgroups/en-us/default.aspx?&query=snmp&lang=en&cr=US&guid=&sloc=en-us&dg=microsoft.public.opsmgr.general&p=1&tid=bfaf68ee-ea6a-4161-a578-dc734842d0fb

So my question is : Did you do something "secret" to have this MP working on SCOM 2007 ??

Thanks in advance.

Our answer:

  1. We had no ‘secret’ to get it to work, we were fortunate that it even worked at all for the demos in that particular chapter. We don’t recommend wasting any time on it. Rather please consider our coverage of the Essentials network device MP as illustrative of what management pack features are useful when authoring custom SNMP network device management packs with OM 07.
  2. The book does not give advice to import it, rather, we used the features of the MP in the book as an example of what you can do with OM SMTP device monitoring, and we cautioned on page 871 that the Essentials MP is not supported or designed to work on OpsMgr. It did work partially at the time we wrote the chapter, but if since then other dependent MPs have been updated and it no longer works, that would not be surprising. We are not testing it anymore and we don’t have it installed in any of our management groups.
  3. The technology for monitoring network devices is planned to undergo changes in the next release of OpsMgr as part of a new Network Aware Service Monitoring solution that is highly scalable. Operations Manager users should not invest in or rely on the Essentials network device management pack. In the near term, we recommend use only the native OM 07 SNMP network device management pack features, or utilize a third party tool or add-on built for OM 07 as needed to support your network devices.

Hope this information helps!

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3 Responses to About the Essentials Management Pack for monitoring network devices in OpsMgr 2007

  1. michel says:

    Hi,
     
    The SCE network MP uses a datasource that in a external module (.dll)
    To solve this problem do the following:
    1) Find the Microsoft.EnterpriseManagement.SCE.Modules.dll file from your SCE installation on your SCE box. (see in the root SCE install directory c:\\program files\\….)
    2) Copy this file to the SCOM server that you are using as the SNMP proxy. Or just copy it to all RMS and MS servers. Location is the root installation directory of SCOM. (example c:\\programs files\\System Center Operations Manager 2007)
     
    3) Restart your RMS and the MS servers.
     
    And now this will work.
     
    Now you can enable the performance monitoring by overriding the correct monitors.
     
    I must say it works BUT in my test lab I have seen strange issues with the event DWH collection workflows on the (R)MS servers that are used as SNMP proxy. (2115 events) When I removed the MP they were gone.
    But I know there is also a issue with the DWH event collection workflows that will be corrected in SCOM SP2.
     
     
    Michel Kamp
    http://www.thebackbone.nl

  2. paul says:

    Hi There,I also installed the MP (in prod) based on information written about it in the book. It seemed to be OK in 2007 SP1, but since i\’ve upgraded to R2, I\’ve seen CPU spikes using 100% lasting 10 mins or so every 15 mins. Event logs indicate that its the SCE MP doing the damage:Loading managed module type in assembly "Microsoft.EnterpriseManagement.SCE.Modules" with type name "Microsoft.EnterpriseManagement.SCE.Modules.SnmpIPSubnetDiscovery" failed with error code "80FF0001" in rule "Microsoft.SystemCenter.NetworkDevice.IPSubnet.Discovery" running for instance "x.x.x.x" with id:"{E9CD74F0-7D13-B95E-77D4-76A677603225}"It has taken me some time to find this, and i\’ve removed the MP and will keep an eye on it to see if it settles down now. Also I am having problems with DW, so what you wrote there gives me hope!Paul

  3. Operations says:

    Hi Paul,Thanks for your question. The book has a dislaimer about that MP – it was discussed as a use-at-your-own risk MP and we weren\’t sure it would work with upgrades to OM 07. As you noted, it appeared to work fine with SP1, but R2 may be a different ballpark – and Microsoft has never supported its use with OpsMgr, only SCE. The book emphasized that the MP was explored as a means to show what is possible with the OpsMgr 20007 authoring tools – it included serveral warnings that it was not for enterprise environments – specifically because it could be fairly noisy (resource intensive), which is why it was included as a SCE MP but not with OpsMgr!Probably not the answer you were hoping for, but hopefully that will clear up some confusion.

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