Xfs drive from old unraid server with data

I have an 8TB drive with a lot of data on it I want to keep. This drive was on a different unraid server. I was hoping I could just add the drive to the array without losing the data. I have seen conflicting reports. Most say it will format the drive when I add it and I get that which means I will need to use the unassigned drives plugin and copy the data to a different drive and then add it.

But some have said you can add it and do a new array config and check retain data. This to me seems like the faster option. I know this will mean the array parity needs to be rebuilt.

I do see the data when I mount it with unassigned drives plugin.

I’ve seen several posts about this and I’m just making doubly sure I understand my options. Sorry that it might seem like I didn’t do my due diligence.