- May 19, 2011
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I've set up software mirroring a few times before on Windows Pro/Server editions but on Server 2022 Standard and 2x 4TB NVMe M.2 disks I'm encountering difficulties.
The procedure AFAIK should go like this:
https://learn.microsoft.com/en-us/t...nd-storage/mirror-system-boot-partition-raid1
TLDR: Go into Disk Management, make sure both disks are configured as dynamic, right-click disk 0, set up mirror. Done.
However this guide indicates a very different route:
https://learn.microsoft.com/en-us/t...kup-and-storage/establish-boot-to-gpt-mirrors
TLDR: "I'm sorry Dave, I can't do boot partition mirroring but I'm not going to explicitly say that"
There's a whole bunch of guides on the MS site regarding the latter route but they all have the same core instructions on the key point of making sure the second disk is capable of booting on its own.
- edit -
I know that full boot drive software mirroring works on Win10 Pro as I've done it in a VM before. I just tried it with the same VM (MBR partition layout), and it worked fine / exactly as I expected it to work from experience. I then set up a second Win10 Pro VM with EFI, verified the GPT layout, attempted to mirror the boot partition but none of the options in Disk Management are available for that partition, nor does it work via diskpart.
I suspect that GPT full boot mirroring can't be done, I just don't have the foggiest idea why (in terms of a technical reason why not, aside from MS couldn't be bothered).
The procedure AFAIK should go like this:
https://learn.microsoft.com/en-us/t...nd-storage/mirror-system-boot-partition-raid1
TLDR: Go into Disk Management, make sure both disks are configured as dynamic, right-click disk 0, set up mirror. Done.
However this guide indicates a very different route:
https://learn.microsoft.com/en-us/t...kup-and-storage/establish-boot-to-gpt-mirrors
TLDR: "I'm sorry Dave, I can't do boot partition mirroring but I'm not going to explicitly say that"
There's a whole bunch of guides on the MS site regarding the latter route but they all have the same core instructions on the key point of making sure the second disk is capable of booting on its own.
- edit -
I know that full boot drive software mirroring works on Win10 Pro as I've done it in a VM before. I just tried it with the same VM (MBR partition layout), and it worked fine / exactly as I expected it to work from experience. I then set up a second Win10 Pro VM with EFI, verified the GPT layout, attempted to mirror the boot partition but none of the options in Disk Management are available for that partition, nor does it work via diskpart.
I suspect that GPT full boot mirroring can't be done, I just don't have the foggiest idea why (in terms of a technical reason why not, aside from MS couldn't be bothered).
Last edited:
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