Can Bitlocker be used to encrypt mirrored disks in a RAID 1 volume?

Is it possible to use Bitlocker to encrypt a RAID 1 volume in Windows 7 Ultimate? The volume consists of two mirrored disks, created using a RAID enabled motherboard. What happens if one of the disks fails? Will I still be able to read the other and re-mirror it to a new disk?

I have the simple answer. BitLocker doesn't work on software RAIDs, but it does work for hardware RAIDs.

I'm running a RAID 1 under Windows 7 Ultimate x64 and wanted a way to secure my drives with BitLocker. So I did a lot of research to finally find the answer on Microsoft TechNet's site, buried deep. This answer should be out in the open in Windows 7 Help, yet I found nothing and wanted to be sure before I made a move. Here's the link if you want to read up on it yourself. It should take you to a chart about halfway down the document. Our concern is listed under Drive Configuration > Software, where you'll see that software-based RAIDs are not supported. I've also found similar confirmation on other websites/forums. 

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Last updated February 15, 2021 Views 22,511 Applies to: