Top System Center Virtual Machine Manager Solutions from Microsoft Supporthttp://support.microsoft.com/ph/13859The latest support information about System Center Virtual Machine Manager Solutions from Microsoft Product Support Services. VMM: Troubleshooting the “Unsupported Cluster Configuration” Status http://social.technet.microsoft.com/wiki/contents/articles/592.aspx#phrssHost status issuesThis article includes information about how to troubleshoot why some virtual machines have the “”Unsupported Cluster Configuration” status displayed in the System Center Virtual Machine Manager (VMM) console. VM with GPT pass through disk on a Hyper-V cluster with SAS based storage array will cause VM to report “Unsupported Cluster Configuration.”http://support.microsoft.com/kb/2525103#phrssHost status issuesWhen you attach a GPT pass-through disk provided from SAS storage (Serial attached SCSI) array to a highly available virtual machine by using the Hyper-V Manager or Failover Cluster Management Microsoft Management Console (MMC) snap-in, the System Center Virtual Machine Manager 2008 Admin Console lists the status of the virtual machine as "Unsupported Cluster Configuration." Multiple GPT Pass Through Disks are not support in System Center Virtual Machine Manager 2008 R2http://support.microsoft.com/kb/2505398#phrssHost status issuesWhen using System Center Virtual Machine Manager 2008 R2, a Virtual Machine (VM) will report an unsupported state after adding multiple GUID Partition Table (GPT) disks. The status changes to 'Unsupported VM Configuration' or 'Unsupported Cluster Configuration' depending on whether the VM is running on a standalone server or on Failover Cluster nodes. Duplicate virtual machines are listed in the VMM Admin Console with a status of Missinghttp://support.microsoft.com/kb/983839#phrssVirtual machine status issuesThis Microsoft Knowledge Base article lists the steps to remove the duplicate virtual machines with a status of Missing. The VMM Admin console crashes because the VMM service crashedhttp://support.microsoft.com/kb/2009348#phrssVirtual Machine Manager service (Vmmservice.exe) issuesIn System Center Virtual Machine Manager 2008, if the Job Count exceeds the recommended upper limit then the Virtual Machine Manager service may consume a large amount of memory or exhibit high CPU utilization. Adding a Hyper-V host in VMM failshttp://support.microsoft.com/kb/2584907#phrssIssues when you add or remove hostsMicrosoft Knowledge Base article 2584907 can help troubleshoot common errors that are logged in the VMM Administrator Console when an “Add virtual machine host” job fails. The errors include 2912, 2916 or 2927 and can be due to issues with WMI or WinRM, duplicate SPNs, Corrupted performance counters, or firewall configurations. Creating a virtual machine fails (1)http://support.microsoft.com/kb/2405062#phrssOtherThis issue can occur if the port used by BITS to perform file transfers is in use by another application or service. BITS uses a default port of 443 (decimal) which is commonly used by secure web sites (HTTPS). Creating a virtual machine fails (2)http://support.microsoft.com/kb/971264#phrssOtherThis issue is caused by a problem with the Host certificate (incorrect name, IP instead of FQDN or NetBIOS) or the certificate is missing from the VMM server. Hyper-V host has a status of “Not Responding”http://support.microsoft.com/kb/976640#phrssHost status issuesMicrosoft Knowledge Base article 976640 can help troubleshoot the "Not Responding" host status that appears in the Microsoft System Center Virtual Machine Manager (VMM) Administrator Console. The "Not Responding" host status indicates that the VMM server cannot communicate with the host. Virtual machine(s) have a status of “Unsupported cluster configuration”http://social.technet.microsoft.com/wiki/contents/articles/592.aspx#phrssHost status issuesThis article includes information about how to troubleshoot why some virtual machines have the “Unsupported Cluster Configuration” status displayed in the System Center Virtual Machine Manager (VMM) console. How to troubleshoot issues when adding a Hyper-V host in System Center Virtual Machine Manager 2008 or System Center Virtual Machine Manager 2008 R2http://support.microsoft.com/kb/2584907#phrss Recommended hotfixes for System Center Virtual Machine Manager 2008 R2http://support.microsoft.com/kb/2397711#phrssSystem Center Virtual Machine Manager (SCVMM)This article describes recommended updates to install to address issues when you are managing hosts or are performing a physical-to-virtual (P2V) conversion by using Microsoft System Center Virtual Machine Manager 2008 R2. How to troubleshoot the Not Responding host status in VMM 2008 and VMM 2008 R2http://support.microsoft.com/kb/976640#phrssSystem Center Virtual Machine Manager (SCVMM)This article provides steps to troubleshoot the Not Responding host status that appears in the System Center Virtual Machine Manager 2008 Administrator Console. SCVMM P2V fails with Error 2910 (0x80070005) Access Deniedhttp://support.microsoft.com/kb/969965#phrssSystem Center Virtual Machine Manager (SCVMM)This article describes how to troubleshoot the following error code: Error (2910) VMM does not have appropriate permissions to access the resource. Access is denied (0x80070005). Error 2912 when a Virtual Machine Manager 2008 operation fails due to a certificate issue: Element not found (0x80070490)http://support.microsoft.com/kb/971264#phrssSystem Center Virtual Machine Manager (SCVMM)This article describes how to troubleshoot the following error code: Error (2912) An internal error has occurred trying to contact an agent on the %serverName%. (Element not found (0x80070490)). You cannot delete a missing Virtual Machine (VM) in SCVMM 2008 or in SCVMM 2008 R2 - Error 802http://support.microsoft.com/kb/983839#phrssSystem Center Virtual Machine Manager (SCVMM)Microsoft Knowledge Base article ​983839 has a link to a script to remove VMs with a status of Missing.