This is a VB Script that can allow you to place multiple servers into or out of maintenance mode - using a file or comma separated list as the input, and optionally using Control Center to locate the servers.
So for example you can input "server1,server2,server3" and have the script connect to Control Center to locate these servers no matter which QDB Repository they are hosted in, then enable or disable maintenance mode. An example of doing that would be:-
c:\> cscript AMMAintMode.vbs /ccserver:dent /maint:on /server=arthur,zaphod
There are instructions in the comments at the beginning of the script. Read those to see how this can be used with or without Control Center.