Hello,
As you certainly noticed it, you got two data loop. One run on bottom IO modules of cages and the second one on top IO modules. Usually i power the new cages, cut down one loop, cable this loop according to the new design, check that every cage is seen correctly on loop A or B through showcage, then proceed with the second loop.
At the beginning and at the end i compare the "checkhealth -detail" returns. Sometimes loop A or B on the nodes cage are offline but any other is online. Then i restart the system manager using some "setsysmgr restart". You will loose connection for a few seconds.
As you totally shut one loop, prefer to do this during low activity hours.
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