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This article helps you work around an issue in which you can't create a protection group in Azure Site Recovery because an error occurred while retrieving the list of servers.
Original product version: Microsoft System Center 2012 R2 Virtual Machine Manager, Azure Backup, System Center 2012 Virtual Machine Manager
Original KB number: 3060975
Symptoms
When you try to create a protection group by using Microsoft Azure Site Recovery (ASR), the attempt fails, and you receive the following error message:
An error occurred while retrieving the list of servers
Additionally, a log entry that resembles the following is logged in a debug log:
[0]058C.0D40::2015-04-07 15:38:06.369 [Microsoft-Azure Site Recovery-Provider][s:\1664\1524\Sources\Online\RecSrv\SRS\Service\DRA\DRA\EnvironmentChange\EnvChangeManager.cs:522 GetFabricLayoutUpdate] The layout as reported by the fabric is: Clouds: CloudId: cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082 CloudName: Cloudname VmmId: Hosts: SrsDataContract.HvHostDetails VirtualMachines: Name : CloudnameTS01 Id : 0a00d728-9e8e-4edf-a7e5-2421dc92b6fb VmmId : CloudId : cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082 HostId : Cloudnamevh01 Hyper-V VM Id : 0a00d728-9e8e-4edf-a7e5-2421dc92b6fb Fabric details : VmConfigurationFileLocation: C:\ProgramData\Microsoft\Windows\Hyper-V\Virtual Machines\0A00D728-9E8E-4EDF-A7E5-2421DC92B6FB.xml NicId: TWljcm9zb2Z0OjBBMDBENzI4LTlFOEUtNEVERi1BN0U1LTI0MjFEQzkyQjZGQlxCQkVCRDM0NC03NEQ2LTQyMjItQUJDRC03NkNCMUM5MUY1MTU=, VMNetworkId: Intel(R) PRO/1000 PT Dual Port Server Adapter #2 - Virtual Switch, VMSubnet: Intel(R) PRO/1000 PT Dual Port Server Adapter #2 - Virtual Switch Name : CloudnameDC01 Id : fcbc3468-c1ec-444b-8db1-e64f696de9f9 VmmId : CloudId : cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082 HostId : Cloudnamevh01 Hyper-V VM Id : fcbc3468-c1ec-444b-8db1-e64f696de9f9 Fabric details : VmConfigurationFileLocation: C:\ProgramData\Microsoft\Windows\Hyper-V\Virtual Machines\FCBC3468-C1EC-444B-8DB1-E64F696DE9F9.xml NicId: TWljcm9zb2Z0OkZDQkMzNDY4LUMxRUMtNDQ0Qi04REIxLUU2NEY2OTZERTlGOVw3MzI0NkI1MS0wNjYzLTRFMzctQjc4MS1BOEVGODg5QUExNEE=, VMNetworkId: Intel(R) PRO/1000 PT Dual Port Server Adapter #2 - Virtual Switch, VMSubnet: Intel(R) PRO/1000 PT Dual Port Server Adapter #2 - Virtual Switch StorageClassifications: StorageArrays: StoragePools: Luns: VmNetworks: VmmId: LogicalNetworkId: 7ffb73ac-24a5-4d90-97e4-89508f5a8082 LogicalNetworkName: Cloudname VMNetworkId: Intel(R) PRO/1000 PT Dual Port Server Adapter #2 - Virtual Switch VMNetworkName: Intel(R) PRO/1000 PT Dual Port Server Adapter #2 - Virtual Switch VMNetworkType: No isolation VmSubnetList: Intel(R) PRO/1000 PT Dual Port Server Adapter #2 - Virtual Switch : Description: Intel(R) PRO/1000 PT Dual Port Server Adapter #2 - Virtual Switch IsPaired: False LogicalNetworks: VmmId: LogicalNetworkId: 7ffb73ac-24a5-4d90-97e4-89508f5a8082 LogicalNetworkName: Cloudname Description: IsNetworkVirtualizationEnabled: False AreLNDsIsolated: False IsGREUsed: False IsTestFailoverLN: False FabricReplicationGroups: Site: .
[0]058C.0D40::2015-04-07 15:38:06.369 [Microsoft-Azure Site Recovery-Provider][s:\1664\1524\Sources\Online\RecSrv\SRS\Service\DRA\DRA\EnvironmentChange\EnvChangeManager.cs:373 UpdateInternal] DRA EnvChangeManager Update CarmineObjectType: Cloud
[0]058C.0D40::2015-04-07 15:38:06.369 [Microsoft-Azure Site Recovery-Provider][s:\1664\1524\Sources\Online\RecSrv\SRS\Service\DRA\DRA\EnvironmentChange\EnvChangeManager.cs:389 UpdateInternal] DRA EnvChangeManager Update, new/update of handler called.
[0]058C.0D40::2015-04-07 15:38:06.369 [Microsoft-Azure Site Recovery-Provider][s:\1664\1524\Sources\Online\RecSrv\SRS\Service\ReplicationProvider\DraPlugins\HyperVReplicaAzurePlugin\ConfigurationTasks\CreateProtectionUnits.cs:67 ExecuteInternal] Skipping PU creation for cloud 'cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082' as PU cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082_371f87f9-53e5-429f-b10b-f14700a4b137 is already present for provider Dra.Plugin.HyperVReplicaAzurePlugin.
[0]058C.0D40::2015-04-07 15:38:06.369 [Microsoft-Azure Site Recovery-Provider][s:\1664\1524\Sources\Online\RecSrv\SRS\Service\ReplicationProvider\DraPlugins\HyperVReplicaAzurePlugin\ConfigurationTasks\CreateProtectionUnits.cs:95 ExecuteInternal] Created PU cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082_371f87f9-53e5-429f-b10b-f14700a4b137 for provider Dra.Plugin.HyperVReplicaAzurePlugin and attached it to cloud 'cloud_7ffee3ac-24a5-4d90-97a4-89508f5a8082' successfully.
[0]058C.0D40::2015-04-07 15:38:06.369 [Microsoft-Azure Site Recovery-Provider][s:\1664\1524\Sources\Online\RecSrv\SRS\Service\ReplicationProvider\DraPlugins\HyperVReplicaPlugin\ConfigurationTasks\CreateProtectionUnits.cs:68 ExecuteInternal] Skipping PU creation for cloud 'cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082' as PU cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082_6c11a271-07bc-4ec4-bf1b-82b2189f980f is already present for provider '6c11a271-07bc-4aa4-bf1b-82b2189f980f' (HvrVM1: Hyper-V Replica (Windows Server 2012)).
[0]058C.0D40::2015-04-07 15:38:06.369 [Microsoft-Azure Site Recovery-Provider][s:\1664\1524\Sources\Online\RecSrv\SRS\Service\ReplicationProvider\DraPlugins\HyperVReplicaPlugin\ConfigurationTasks\CreateProtectionUnits.cs:96 ExecuteInternal] Created PU cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082_6c11a271-07bc-4ec4-bf1b-82b2189f980f for provider '6c11a271-07bc-4ec4-bf1b-82b2189f980f' (HvrV1: Hyper-V Replica (Windows Server 2012)) and attached it to cloud 'cloud_7aaa3ac-24a5-4d90-97e4-89508f5a8082' successfully.
[0]058C.0D40::2015-04-07 15:38:06.369 [Microsoft-Azure Site Recovery-Provider][s:\1664\1524\Sources\Online\RecSrv\SRS\Service\ReplicationProvider\DraPlugins\HyperVReplicaPlugin\ConfigurationTasks\CreateProtectionUnits.cs:68 ExecuteInternal] Skipping PU creation for cloud 'cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082' as PU cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082_9208701f-5eaa-45c9-ad8a-0d8d097264ef is already present for provider '9208701f-5eaa-4aa9-ad8a-0d8d097264ef' (HvrVM2: Hyper-V Replica (Windows Server Blue)).
[0]058C.0D40::2015-04-07 15:38:06.369 [Microsoft-Azure Site Recovery-Provider][s:\1664\1524\Sources\Online\RecSrv\SRS\Service\ReplicationProvider\DraPlugins\HyperVReplicaPlugin\ConfigurationTasks\CreateProtectionUnits.cs:96 ExecuteInternal] Created PU cloud_7ffb73ac-24a5-4d90-97e4-89508f5a8082_9208701f-5eaa-45c9-ad8a-0d8d097264ef for provider '9208701f-5eaa-45c9-ad8a-0d8d097264ef' (HvrV2: Hyper-V Replica (Windows Server Blue)) and attached it to cloud 'cloud_7faaaac-24a5-4d90-97e4-89508f5a8082' successfully.
Cause
This problem may occur if the Microsoft Hyper-V virtual switch name contains the number sign (#).
Workaround
To work around this problem, follow these steps:
On the Hyper-V host, open an elevated Command Prompt window. To do this, click Start, type cmd, right-click cmd.exe in the results list, and then click Run as administrator.
At the command prompt, run the following command:
net stop DRAChange the name of every Hyper-V virtual switch so that it does not contain the number sign (#).
At an elevated command prompt on the Hyper-V host, run the following command:
net start DRAOn the Servers page in the Azure portal, restart the host server.
After you complete these steps, you should be able to create a protection group successfully.
More Information
Microsoft has confirmed that this is a problem in Azure Site Recovery, and is working on a resolution.