What to do if I want to change the stack master Cisco 3750 switch.

I need to change a defective stack master switch on a stack with 2x 3750.
I would like to know if I'll lose the running config, or if the second switch will reboot automaticly ( or the switch will need a reboot ).
Because the second switch in the stack is used by a lot of our equipements so I don't want ( if possible ) to have any downtime.
Thanks a lot!
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cosmicfoxConnect With a Mentor Commented:
you can lose a switch in a 3750 stack, all of the switches share the same config. you can change the priority on a stack member to make that switch be the master the higher the priority then that switch will be master. also when you install the new switch you might need to change it's switch number. so lets say you have 3 switches each switch is assigned a number. if you replace number 2 then the new switch will have to be set to be switch 2. you will have to do a switch (switch number) renumber to make the new switch number 2.
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