Areca 1220 RAID card replacement

We have an Areca 1220 RAID card running in one of our servers and are planning on purchasing a second in case of failure of the card itself. My question is: Will the new card be able to rebuild the RAID data from the drives and their signature, or is there some non-volatile memory on the Areca 1220 RAID card that would NOT allow me to recover the array with the new card in place?
jarfischAsked:
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DavidPresidentCommented:
The controller does put metadata on the drives that identify the RAID layout, so the controller is supposed to "learn" the config.  However, you need to contact Areca and tell them the firmware you are currently running, and ask them if there are any gotchas with different firmware revisions.  This is not the sort of thing that is covered in an online doc, so best to contact them directly.   Metadata does change and it is not unheard of that a migration will fail, or worse, destroy data if disks are taken to a controller running different firmware.
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DavidPresidentCommented:
P.S., before migrating, best practices are to ...
1) Upgrade firmware & drivers to latest revision BEFORE the migration
2) Make sure you run data consistency check to insure that there are no bad blocks and no XOR parity errors.   You want everything to be healthy.  
3) If possible, plug it into a UPS.  You don't want to lose power when the controller is importing the new config into the NVRAM.

jarfischAuthor Commented:
Dlethe, thank you very much for you quick and thorough response.
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