Failed to add VMware DC to zone due to : This DC is being managed by other CloudStack deployment.

轉載：https://engtmk.wordpress.com/2013/11/25/failed-to-add-vmware-dc-to-zone-due-to-this-dc-is-being-managed-by-other-cloudstack-deployment-cannot-add-this-dc-to-zone/

cloudstack 部署一個數據中心時經常需要推翻重來，每次都要重建一個vcenter 相當麻煩，中文網站一個討論的人都沒有，這裏給大家送福利了。

1、下載VMware-PowerCLI-5.5.0-1295336

https://download2.vmware.com/software/sdk/VI-WT/VMware-PowerCLI-5.5.0-1295336.exe?HashKey=30444add057f9d429447f31ed24fe803&ext=.exe&params=%7B%22custnumber%22%3A%22ZGoqKnBoJXRwdA%3D%3D%22%2C%22sourcefilesize%22%3A%22193M%22%2C%22dlgcode%22%3A%22PCLI550%22%2C%22languagecode%22%3A%22cn%22%2C%22source%22%3A%22DOWNLOADS%22%2C%22downloadtype%22%3A%22manual%22%2C%22eula%22%3A%22Y%22%2C%22downloaduuid%22%3A%2217a21445-6b8c-4eb8-abb4-04abd2a6a255%22%2C%22purchased%22%3A%22N%22%2C%22dlgtype%22%3A%22Drivers+%26+Tools%22%2C%22productversion%22%3A%225.5.0%22%2C%22productfamily%22%3A%22VMware+vCloud+Suite%22%7D&AuthKey=1472006906_1598536d8d34f445f85585b3dbe3d941&ext=.exe

2、安裝VMware-PowerCLI

安裝過程中會重複重啓，請確認重啓，不要設置稍後手動重啓。

3、在開始，菜單中選擇 vmware ->VMware vSphere PowerCLI

其中會提示由於安全策略，此係統禁止執行腳本之類的提示，請處理後再執行開始 菜單 -> VMware>VMware vSphere PowerCLI 

connect-viserver -Server vcenter的ip地址

4、稍後，在彈出的用戶名和密碼輸入窗口中輸入正確參數後，輸入 Get-CustomAttribute 獲取用戶自定義屬性

5、如果有cloud.zone ，刪除該屬性：Remove-CustomAttribute  cloud.zone 

6、ok，當前vcenter也又可以重新在cloudstack中添加了