I'll give it a try. I read somewhere that the licence keys are not required for the first 120 days i.e. you can copy the config back and worry about the keys later as they are specific to your switch. This would be good as it saves worrying about this detail at a time of high stress. Is this correct?
You are correct - There is grace periods. One thing to note, license keys are fixed to the individual switch, so you would have to lodge a case with the TAC to get a new key allocated to your new switch.
I found that article and did a test of the recovery the other day. Recovery is close to what the article says but because you are copying to running config you can end up with some duplicate comands like the bootfile command and the SNMP user commands need modification because they are linked to the CLI user commands (different to cisco IOS switch). I've modified my documentation to take these differences into account so recovery in the event of a real disaster should be relatively straight forward.
Introduction This article will help you understand the steps on how to
download the UCS licenses from the Cisco Systems website and then
installing it on the UCS. The redacted (blue lines) just covers up
certain numbers for privacy please do not take them...
Introduction This article will help you understand and educate the
customer on how to clear their "expired licenses"
(license-graceperiod-expired) from their UCS-M. If a customer just
purchased a license and needs a step by step guide on how to download
Introduction Prepositioning is a powerful tools on the WAAS platform but
it is not always easy to figure out why your jobs are failing when
trying to retrieve the files.Here is a method that should help you to
figure out the reason why they are not succes...