This isn't a happy cluster.Įvery storage pool has a health status - Healthy, Warning, or Unknown/ Unhealthy, as well as one or more operational states. Here's an example of a variety of (mostly bad) health and operational states on a Storage Spaces Direct cluster that's missing most of its cluster nodes (right-click the column headers to add Operational Status). You can view health and operational states in Server Manager, or with PowerShell. Volumes are created on top of the virtual disks and store your files, but we're not going to talk about volumes here. Pool metadata is written to each drive in the pool. Storage Spaces has three primary objects - physical disks (hard drives, SSDs, etc.) that are added to a storage pool, virtualizing the storage so that you can create virtual disks from free space in the pool, as shown here. 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: Azure Stack HCI, versions 22H2 and 21H2 Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows 10, Windows 8.1
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