Windows 10: Disk mirror failed redundancy: Remove mirror or reactivate volume?

Discus and support Disk mirror failed redundancy: Remove mirror or reactivate volume? in Windows 10 BSOD Crashes and Debugging to solve the problem; Situation: Windows 10 1803 computer. OS drive is fine. Have two other very large disks ("3" and "4"), mirrored from within Windows. "4" has... Discussion in 'Windows 10 BSOD Crashes and Debugging' started by pfurrie[H], Jan 24, 2019.

  1. Disk mirror failed redundancy: Remove mirror or reactivate volume?


    Situation:

    Windows 10 1803 computer. OS drive is fine. Have two other very large disks ("3" and "4"), mirrored from within Windows. "4" has problem, taking it offline and losing its data (now shows up as "Missing").


    Currently we're able to read data from disk #3. Disk Management shows the two disks from the original mirror, both with failed redundancy:


    Disk mirror failed redundancy: Remove mirror or reactivate volume? 71dbd6a7-b010-422d-ae77-55512b52d4f2?upload=true.png


    If I right-click on either of them, several options are presented...


    "Break Mirrored Volume..." is greyed out, so can't do that.

    "Remove Mirror..." is available.

    "Reactivate Volume" is available.


    Since only disk 3 actually has data on it, we want to preserve it. However, there is too much data for us to backup reasonably; whatever solution we try must not destroy that information.


    If we selected "Remove Mirror..." we get this dialogue box:


    Disk mirror failed redundancy: Remove mirror or reactivate volume? 16225440-a2d7-49af-add2-80a3cfbe300f?upload=true.png


    In our opinion, the text in the dialogue box is not clear. If we run the "Remove Mirror," which drive do we select in order to retain our data? Is the selected drive the one which has its data gone (removed, deleted, toast), OR is that the drive which has its mirrored data removed (which would be the other drive?


    Or... maybe we select "Reactivate Volume"? Does that reactivate the mirrored volume or the specific disk which is selected when reactivation is selected? (as in drive "3" or "Missing"). How do we know which drive's data is considered the "good" data, which will be mirrored to the other drive? Would be bad to have the non-data from the "Missing" drive to be copied over the real data on drive "3."


    Have done a bunch of searching, but haven't found adequate answers.

    :)
     
    pfurrie[H], Jan 24, 2019
    #1
Thema:

Disk mirror failed redundancy: Remove mirror or reactivate volume?

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