Thank you Mitch for your answer
May I ask some additional questions ?
This is for one of my customer.
They already tried it some time ago and it made one of the controllers to panic.
Today, I already scheduled to be on site to check the configuration of disk shelves that will be added. The goal was to verify if any old configuration of DDP or VG was still there. I will have the former E5424 available to reconnect shelves on it and do adequate checks
If so, I will destroy any existing DDP or VG, but the customer says he has already done it. So, at the end of the day, I will be sure that no DDP or VG are present on the shelves they need to add on another array.
My first question: Is there a special command or action that could make me sure shelves are in "factory" defaults and that all configuration (even low-level) has been removed ?
While checking the configuration, I can see that cabling of current shelves does not follow best practices (not a top/down cabling). I suspect this may be the cause of the controller panic when they tried to add shelves.
My second question: Can I change the cabling as a hot operation , or is it mandatory to stop the E5424 array so they can correct the cabling ?
Finally, disk trays that are added contain plenty of drives belonging to the former array. I read that in such case, drives should be inserted one a time. WHat should we do there ?
Thank you