Hi there folks, I followed the Disk Management instructions from this site: https://www.guidingtech.com/4-best-ways-to-configure-raid-1-on-windows-11/ to configure my RAID1 array of 2 x 20 TB Enterprise HDDs (internal) on my new Desktop Tower PC, Windows 11.

However, when I go to ‘This PC’ and click on the new volume D drive, it’s showing a total of about 40TBs. Because it’s mirrored drives, shouldn’t I only see 20 TB of available space because of the redundancy?

I’m a little confused how this works and if I set it up correctly.

Please advise, thanks!

  • rotipomOPBEnglish
    1·
    11 months ago

    Thanks for explaining Storage Spaces, I was wondering about this! However (sorry the link I sent is super confusing), I followed the instructions for Disk Management RAID creation (Number 3 down the page), not the Storage Spaces one.

    BUT I did at first tried the Storage Spaces pool but found the same problem, so I deleted the pool and removed the drives and started over with Disk Management. I’m not sure if that affected anything. The drives appeared like they did after I restarted - unallocated.