I am doing a fair bit of work with the Lab Center integration with SCVMM for environment provisioning and cloning. With this using the SMI-S integration into the Storage Management Service so that the VMs are provisioned as SAN based 'Rapid Deploy' snapshots.
This setup is all Server 2012, Hyper-V 3.0, SCVMM 2012 SP1 Rollup 1 but getting an interesting quirk with it.
Whenever provisioning beyond 6 VMs I get a range of failures related back to the SMI-S functions reported from within SCVMM. Traces have shown this issue is being generated at SCVMM and seems to be time based issue (have eliminated load as a factor). This
issue occurs for stand-alone hosts, clustered groups, common pool, seperate pool masters, etc with the same break point.
Anyone else seen anything like this or does anyone have detail around the tuning options available for the storage management service in 2012?
Through increasing the 'OperationTimeout' value in 'HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Storage Management' I can now execute larger concurrent VM provisioning volumes successfully. Playing with other timeout values in this registry key area resulted
in task failures and putting to high a value in the OperationTimeout entry resulted in tasks running very slowly.
Is there any references around the entries in the 'Storage Management' key available to help with tuning?
Microsoft is conducting an online survey to understand your opinion of the Technet Web site. If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.