Question Does anyone here have any experience with Windows dynamic disks + UEFI software RAID1?

mikeymikec

Lifer
May 19, 2011
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I ran into some problems trying to get a new Windows 11 Pro install with dynamic disk mirroring set up to in-place upgrade to 24H2. The upgrade threw an error ("we're not sure if you have enough disk space"), and in my attempt to fix that I fudged the install so it couldn't boot any more, then once I had done a fresh install on one of the disks with the other disconnected, I reconnected the second disk and then Windows claimed it was "foreign" so I told diskpart to switch it back online tyvm, then Windows Disk Management claimed that the former C drive on that dynamic disk was "unpartitioned space" while diskpart was claiming it was "dynamic data", and Linux just let me march straight in and mount the ntfs partition in there.

Is there a way within Windows to mount this filesystem? Diskpart won't let me assign the partition a drive letter because it doesn't recognise it as a volume.

I've done Windows dynamic disk mirroring before, and pre-UEFI it worked a lot better than this. Post UEFI is a lot harder to implement.