In certain situation like Master server becoming unresponsive, we may need to change  the XenServer Pool master role. This article illustrates how to perform that from XenServer Console

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Instructions

Go to any server in the pool 

On console type "xsconsole"



Goto "Resource Pool Configuration"



Goto "Designate a New Pool Master"


( You might be asked to provide your root credentials )

• Select the Host that you want to make the master,
• Press Enter Key
• Press F8 to confirm

The pool will now disconnect.

Try Reconnecting with new pool master 


In Case of an Emergency situation where the Pool members are unable to communicate properly with each other , Refer : How to Use the Emergency Transition of Master Command

This Article will guide you through the process of Changing the Pool Master from XenServer Console