So, I’ve been trying to figure out a weird issue with how drives in my Storage Space pool are being displayed. I first noticed this using Server Manager.
First, for background, my pool is a 2-way mirror with 17 drives, and weighs in at 23.6 TB formatted.
However, in this screenshot of server manager, you can see that Windows thinks it is 4 drives less than that. Disregard the retired drive, that’s removing currently.
If I go to just the basic drives view in server manager, I see some of the missing drives, as well as a few that are reflecting in the storage pool.
At this point, I was growing concerned, but figured it could be a GUI glitch. So I went to Powershell to pull out the list of drives associated with the pool. That showed exactly what I expected, all 17 drives:
I figured, since I was good there, I’d just verify that the visible disks to Windows showed correctly. I ran a get-disk, which shows the disks visible to the OS. This shouldn’t show the Storage Spaces drive, since they are abstracted by Windows. However, I can see a similar set of drives to what I saw in Server Manager, as you can see below.
Honestly, I have no idea what is causing this behavior. The storage spaces rebuild as expected after a drive failure. All pool health is returned as healthy. Just some drives show both in pool and visible to Windows.
Anyone seen this behavior before?