Moving from VIA RAID controller to another RAID controller?!?

Hello
I'm going to install a RAID-1 with 2 SATA harddisks from seagate using the onboard VT8237 RAID controller of my KT6 Delta.
I guess there should be no problems and that the temperature on the motherboard will be fine.
However, what will happen if I want to move later on to a new motherboard with another raid controller or install a dedicated RAID controller?!?
Will I loose all my data?  Or will the new raid controller duplicate the data based on the source drive?
Thanks
JohnQM

I have read somewhere that the following migration paths apply for raid:
1. raid-1 can always be migrated to a new RAID controller, no matter which brand, because raid-1 is just a mirror and no important information is written in the partition table
2. raid-0 or other raid-levels
2.0 from one brand of RAID controller to the same version of the RAID controller of the same brand: no problem
2.1 from one brand of RAID controller to a new version of the RAID controller of the same brand: usually no problem (upwards compatible)
2.1 from one brand of RAID controller to a RAID controller of another brand: no go
Can someone confirm this please?
Thanks
JohnQM

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