Hi,   we have a MS425 stack consisting of 2 switches. Our ESXi host are connected to them using iSCSI. The problem we are facing is that when performing a firmware update through the dashboard both members reboot at the same time, which causes havoc on our vSphere environment since the hosts loose their connection to the VMFS data stores. Up until now, Meraki support was able to update the members one by one so that the connection to the data stores remain online. However, support now state they aren’t allowed to do that anymore.   The only solution for us now is to break up the stack in 2 single switches which I can update one by one.   I have several questions:   When I remove the stack will the configuration on the switches be lost and reset to default? Do I need to shutdown our vSphere environment to prevent loosing access to the data stores? Or is the reconfiguration procedure so short that vSphere will survive this? How about the stacking cables, when do I remove them? Before or after breaking up the stack? If I leave them in place during breaking up the stack, will this causes a loop? Or are they protected by RSTP?   ... View more