VMware vCenter Server troubleshooting migration fails with compatibility error: The operation is not allowed in the current state

Products

• VMware vCenter Server

Issue/Introduction

Symptoms:

• vMotion migration operation fails
• When performing a vMotion migration operation, you see this compatibility error:
  
  Unable to migrate from <source server> to <destination server>: The operation is not allowed in the current state .

Environment

VMware VirtualCenter 2.0.x
VMware vCenter Server 4.1.x
VMware vCenter Server 5.0.x
VMware vCenter Server 5.1.x
VMware VirtualCenter 2.5.x
VMware vCenter Server 4.0.x
VMware vCenter Server 5.5.x

Cause

This issue can occur if the ESX/ESXi host or a virtual machine is in an unexpected state.

Resolution

To work around the issue, perform one of these options:

• Cancel any existing task from the VMware Infrastructure Client.
  
• Wait until any pending tasks are complete.
• Restart the VMware vCenter Server service.
  
• Restart management agents of the host. For more information, see Restarting the Management agents on an ESXi or ESX host (1003490).
• Disconnect and reconnect the host to the vCenter Server.
  

Additional Information

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Restarting the Management agents in ESXi
互換性のエラー「この操作は、現在の状態では実行できません」により移行が失敗する VMware vCenter Server のトラブルシューティング
VMware vCenter Server 解决迁移问题失败，并显示以下兼容性错误：处于当前状态时不允许该操作