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Active System Manager Release 8.1.1 Installation Guide

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System Center Virtual Machine Manager (SCVMM) Prerequisites

ASM manages resource on Microsoft System Center Virtual Machine Manager through Windows Remote Management (WinRM). Windows RM must be enabled on the SCVMM server as well as on Active Directory and DNS servers used in SCVMM/HyperV deployments. ASM deployments support Active Directory and DNS servers which exist on the same machine. If Active Directory and DNS servers exist on separate machines, some manual tear-down may be required to remove host entries from the DNS server. ASM requires Windows RM to utilize default port and basic authentication. To enable these settings, on the SCVMM server and on the Active Directory and DNS server used in HyperV deployments, open a Windows PowerShell interface with administrator permissions and run the following commands: 
winrm set winrm/config/client/auth '@{Basic="true"}'
                                 winrm set winrm/config/service/auth '@{Basic="true"}'
                                 winrm set winrm/config/service '@{AllowUnencrypted="true"}'
The default amount of memory allocated for WinRM processes is limited to 150 MB. To avoid out of memory errors, increase the memory size to 1024: 
winrm set winrm/config/winrs '@{MaxMemoryPerShellMB="1024"}'
For Windows 2008: 
winrm quickconfig
  • NOTE: There is a known issue with WMF 3.0. The MaxMemoryPerShellMB configuration may be ignored. For more information, see KB2842230. The fix for Windows 8/Windows 2012 x64 (non R2) is available at the following link. The fix is not necessary for Windows 2012 R2.

Make sure the SCVMM has its time synchronized with time of the associated timer server. If the SCVMM timer is set to 'off' mode by using the deployed Hyper-V hosts, you cannot add hosts and create clusters in SCVMM.

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