Ancient IBM ServeRAID 8s question

Apologies for bringing up such an ancient subject in here. My company has an old server we're using - soon to be phased out - that is an IBM System x3200. It has a SAS RAID controller, the ServeRAID 8s. This has two internal ports and one external.

I added two drives and an additional cable to the second internal port, expecting I'd be able to add a new array. That not only didn't go well, but I have since disconnected it and am now back to trying to boot the system. The original drives \*are\* seen by the system, but the RAID controller puts up a dialog box that reads (and this is coming to my question):

"Configuration change has been detected in the system. If you reject the configuration change, you will not be able to modify current configuration. If you accept, it will be updated to the current configuration."

Do any of our veteran Sysadmins here know the answer to this: If I select Reject, will it revert to the original controller configuration?

Thank you in advance for any info.

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Additional info: this is a simple RAID 1 mirror, nothing complex.

I can't find specific info about this controller, but it seems many other SAS RAID solutions store the controller configuration on both the controller and the attached drives. I'm somewhat hopeful that selecting "Reject" will revert to the prior configuration and proceed. Whatever I do, I need to avoid initializing the drives in a new array.

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EDIT: Does anyone know if IBM offers support on a pay-per-case basis, and if so how to open a case? Their [ibm.com/mysupport](https://ibm.com/mysupport) site doesn't seem to offer any direct access to such a service.