OVM-2020 Server pool master can not be set to maintenance mode

Hi Guys.
I have 2 server in ha mode
server 1 (10.99.99.161) with oracle Manager installed (server pool master, utility server, vm server)
Server 2 (10.99.99.161) without Oracle Manager installed (utility server, vmserver)
HA enable with server1 and server 2
10.99.99.165 is the virtual server pool master
1 San connected with server 1 and server 2.
Without problem I can connect on https://10.99.99.165:4443/OVS without problem.
All seems work, but :
1 - I I try to set in maintenance mode the server 1, the VM Manager say me:
OVM-2020 Server pool master (10.99.99.162) can not be set to maintenance mode, please use server pool master failover policy to change its role, then try again.
What I shuld do ?
2 - If I turn off the server 1 the server pool master is attribuite to server 2, but I'm unable to connect on https://10.99.99.165:4443/OVS webpage. It is correct, it is a bug, or I'm doing something wrong ? Must I upgrate something ?
Many Thanks
Luca

user8857532 wrote:
1 - I I try to set in maintenance mode the server 1, the VM Manager say me:
What I shuld do ?You need to live migrate all your guests off the current Master server, then issue service ovs-agent stop on the command-line. This will cause the pool mastery to switch to another server. Once that's done, you can start the agent agent.
2 - If I turn off the server 1 the server pool master is attribuite to server 2, but I'm unable to connect on https://10.99.99.165:4443/OVS webpage. It is correct, it is a bug, or I'm doing something wrong ? Must I upgrate something ?
You need to ensure the VM that's running the Oracle VM Manager software is still running. Live Migrate it first (preferred option) and flag it HA-enabled so that it is automatically restarted in the case of a server failure.

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