Friday, January 9, 2015

SCOM - New Windows Server OS Management Pack Available - BUT BEWARE!

FINAL UPDATE 3rd February 2015
A new version of this MP has just been announced. Check out the information on changes and where to download it from here.

UPDATE 14th January 2015
Microsoft has confirmed this is a bug and have pulled this new MP version. The old version (6.0.7292.0) of the Windows Server OS MP has been made available for download again and if you're currently in the process of deploying a new SCOM environment, then I'd suggest using this version for now until the bug is fixed. You can download the old MP from here.

A few days ago, Microsoft released an update to their base Windows Server Operating System management pack (version 6.0.7294.0) that was supposed to fix a minor issue that the previous edition has (fix listed below):

  • Fixed more performance collection workflows that were failing for mount points

However, one of my MVP friends (and SCOM MP Ninja) Daniele Grandini noticed a bug in this new MP during his own tests - below is what he has to say on it:

"The latest OS MP has a serious flaw when collecting disk performance counters. If you don’t want your DB bogged down with too many performance data points, stay away from it."

Now, I've run some tests in my own demo environment and can also see multiple discoveries for each logical disk so until I hear more from Daniele or Microsoft, I'm going to keep this MP out of my production environments - and I suggest you do the same too!

I've also just noticed that Marnix has posted something similar about this MP, so it's better to be safe than sorry in this case!

When I have more information, I'll update this post to reflect and if you're not yet following Daniele or Marnix' blogs, then get signed up via RSS ASAP (you could use the really handy OPML file that Stefan Roth has just released to help you along with this!)

Hope this saves people some time/sanity and hassle :)


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  2. I already installed the latest version. How can I install the previous version of the management pack? SCOM doesn't allow me to install the previous version due to a newer version in scom.

    1. Hi Erwin,
      You'll need to uninstall the new version of this MP first (and also any unsealed MP's that depend on it) before you then install the older version.


    2. Hi Kevin,

      There are more MP's then only the unsealed MP's that depend on the Server Core OS MP. We also installed MP's for sql server, dns, dhcp, ad,....

      Removing all the other MP's is going to be a pain.

      Thanks for the answer


  3. Hi kevin,
    I have installed System Center Management Pack for Windows Server Operating System version 6.0.7296.0/02.02.2015 and receive this error on all domain controllers: Many Corrupt or Unreadable Windows Events... Alert description: The Security event log on computer 'computer.domain.xx' is still corrupt. The Event Log Provider will attempt to recover by skipping over a possible bad record. The Provider may skip up to two records.
    You know why this problem occurs?

  4. Recently, Microsoft announced the general availability of Windows Server 2016 Technical Preview 3.
    Here is a nice artice about new features in Windows Server 2016