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Need help with setting up mirror

Giga Hawk

I have a workstation with 2 SSDs and I would like to set up a mirror (RAID1) with dynamic disks. This was very easy in MBR mode. Unfortunately I am in UEFI/EFI Mode and things are more difficult now.

I am looking into the Microsoft documentation but theirs is based on another operating systems (Windows Server?). So, they have a different number of partitions and sizes.

Could someone help me out with the settings for Windows 8. I'd like to mirror the drive and both should be bootable.

Problem: Microsoft documentation differs from Windows 8 default installation as I will show.

First things first:

The attachment shows the Windows installation in disk management console. All partition have been setup automatically during installation.

Secondly, the Microsoft documentation: "How to establish and boot to GPT mirrors on 64-bit Windows"
How to establish and boot to GPT mirrors on 64-bit Windows

Now, here things get tricky as Microsoft's disk configuration looks like this:

DISKPART> List partition

Partition ### Type Size Offset
------------- ---------------- ------- -------
Partition 1 System 204 MB 32 KB <---- EFI PARTITION
Partition 2 Primary 4996 MB 204 MB
Partition 3 Reserved 32 MB 9 GB <---- MSR PARTITION

Windows 8's looks like this

[DISKPART> list partition
Partition ### Type Size Offset
------------- ---------------- ------- -------
Partition 1 Recovery 300 MB 1024 KB
Partition 2 System 99 MB 301 MB <---- EFI PARTITION
Partition 3 Reserved 128 MB 400 MB
Partition 4 Primary 111 GB 528 MB

For you see, not even the number of partition matches. Could someone help me with creating the bootable mirror please?


  • Windows 8 EFI Mirror Start.png
    Windows 8 EFI Mirror Start.png
    12.9 KB · Views: 100

My Computer

System One

  • OS
    Windows 8.1 Pro x64 (6.3.9600)
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    HP Pavilion Ultrabook 14-b083eg
    Intel® Core™ i3-3217U
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    Other Info
    System BIOS Version F.1B (Aug 23, 2013)