It also discusses why a drive can't be added to a pool (the CannotPoolReason). These states can be invaluable when trying to troubleshoot various issues such as why you can't delete a virtual disk because of a read-only configuration.
This topic describes the health and operational states of storage pools, virtual disks (which sit underneath volumes in Storage Spaces), and drives in Storage Spaces Direct and Storage Spaces. Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows 10, Windows 8.1
