So last night we had stack 1 of our 3 switch stack go down due to a UPS problem. Fail-over occurred perfectly and stack 2 became the master. Once we fixed the UPS, the stack 1 switch came back up without a problem. Now stack 2 is the master and stack 1 is the backup. What is the easiest and safest way to get stack 1 back as the master and stack 2 back as the backup?
Thanks for your time and answers,