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How to transfer a partition created during server 2019 setup on another volume?

Win 2019 server setup created a partition outside of the mirrored volume, on another large volume and therefore made that volume mbr instead of gpt. Is there a way to move that partition back to mirrored volume.

Windows Server 2019

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Lee W, MVP

8/22/2022 - Mon
Seth Simmons

Is there a way to move that partition back to mirrored volume.

a screenshot of disk management would be more useful since there are a number of unknowns
much easier to see graphically how it is laid out
Lee W, MVP

Agree with Seth; I've having trouble visualizing based on your wording.  Screenshot would make it more clear.

Here't the snapshot:

as you can see above, my OS volume is disk 1, but when I was setting up the OS Win 2019, I selected volume with disk 1, but the setup still created a small partition on the disk 0 which I needed it to be GPT partition, but after win setup created a small partition on it, it became mbr partition.

What I would like is to remove that small partition in order to convert disk 0 to GPT, and not lose my OS boot in the process...
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James Murphy
Seth Simmons

how are your disks configured in storage (guessing hardware raid)?
also, is the system booting UEFI?
somehow i have a feeling an OS reinstall will be necessary; even if you converted disk 0 to GPT, could cause the system to not boot

disk 0 is RAID5, disk 1 is RAID1, and disk 13 is multiple RAID1 setup in storage spaces with single parity.

I was thinking of capturing the disk 1 image with Acronis, and after cleaning up, restoring it to disk 1, but I am not sure if that could work without the small partition created on disk 0.

I have never seen this happen before that when you select certain disk, the setup takes a part of another disk...

sorry, what I meant, disk 13 is a multiple RAID0 setup in storage spaces with single parity
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Lee W, MVP

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