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I had a Windows 2012 R2 hyper-v core installed on a disk that crashed. I had set up a storage pool with 4 disks in it.

I replaced the crashed disk and reinstalled the OS, but the storage pool is gone.

If I run get-storagepool all I get is

FriendlyName OperationalStatus HealthStatus IsPrimordial IsReadOnly ------------ ----------------- ------------ ------------ ---------- Primordial OK Healthy True False

And if i run get-physicaldisk i get the following

FriendlyName CanPool OperationalStatus HealthStatus Usage Size ------------ ------- ----------------- ------------ ----- ---- PhysicalDisk3 False Unrecognized Met... Unhealthy Unknown 4.55 TB PhysicalDisk0 False Unrecognized Met... Unhealthy Unknown 3.64 TB PhysicalDisk1 False Unrecognized Met... Unhealthy Unknown 2.73 TB PhysicalDisk4 False OK Healthy Auto-Select 55.9 GB PhysicalDisk2 False Unrecognized Met... Unhealthy Unknown 2.73 TB

PhysicalDisk4 is the OS disk!

Edit: Well i think i know what happend now, when the disk went offline i used a USB stick with the windows 10 installation media to get access to CMD just to check the status of things, i guess it then upgraded the storage pool to a windows 10 storage pool, and 2012 R2 can't read that. i have no idea if i can downgrade it somehow?

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I installed the evaluation version of windows server 2016 and im now back up and running again.

Just waiting for the free hyper v core edition to be released.

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