• IT Systems Engineering

    Error 20552 in VMM after restoring database

    So after scratching my heard for the most part of two hours, I found out the solution to my problem. The problem started happening after I had to restore the DB of my VMM 2012 R2 onto a new installation. I kept on getting Error 20552 when refreshing any server in VMM. I finally resolved it by re-entering the password for the “run as account” for the VMM service in control panel. PS: I had tried resetting the password inside VMM’s settings > Security > run as account > my host admin account. But that was not taking, throwing an error saying that the account was not found in the…

  • IT Systems Engineering

    Create clone of running VM using VMM

    Do you know that System Center Virtual Machine Manager (VMM) lets you create an identical clone of a running VM? Yes! you do not even have to shut down a VM . How cool is that! Just remember: 1) While going through the cloning process wizard in VMM, choose to leave the NIC disconnected If you do not leave the NIC connected, you will have duplicate IP addresses on the network, when the cloned VM boots up. 2) After the cloning process completes, remember to run sysprep. Yes, there have been some reports that VMM runs sysprep when it creates a clone, but I have confirmed myself (using psgetsid utility)…

  • IT Systems Engineering

    Solution to Host not responding in SC VMM

    I have been troubleshooting a WinRM related problem which was the main cause of an error shown in SC Virtual Machine Manager as “Host not responding”. The error always pointed to Win RM or Windows Management. I tried a lot of fixes, but nothing worked. Eventually I thought to rebuild the Windows Management repository. Here are the steps I took to fix this issue: Run this command on the errant server: net stop winmgmt (You will have to do this multiple times, or the step #2 will give you an error, file in use) rename the folder ‘Repository’ underneath %windir%\system32\wbem restart the system Done The repository will be rebuilt automatically,…

  • IT Systems Engineering

    Avocent UMG 4000 problems

    ok so we we just bought a new KVM, a Avocent UMG 4000. I am very unhappy to report that we have multiple problems with this device. I have opened multiple tickets to get these issues resolved with Avocent’s tech support. The good thing is that the tech support is responsive and helpful. However, I feel that these are basic things which should work right out of the box for any KVM. The old Avocents we had worked fine, for over a decade! These basic KVM features work fine even in $50 KVM switches. This UMG 4000 is a $10,000 dollar product! Needless to say, I am VERY disappointed with…