Hello there,
To reestablish mirroring, you must get both drives online and then resynchronize the mirror, but you should rebuild the set using disks with the same partition style-either MBR or GPT. The corrective action you take depends on the drive status.
Note: When mirroring boot volumes, Windows requires you to use the same partition style. With data volumes, you can mirror between GPT and MBR.
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Hope this resolves your Query !!
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