The Volume Condition Checker for Kubernetes uses the Container Storage
Interface Specification's NodeGetVolumeStats operation
to detect if a PersistentVolume has an abnormal condition. CSI drivers can
return the condition of a volume in the NodeVolumeStatsResponse message.
... to be done
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Rook is a Kubernetes Operator that is able to Network Fence a workernode where a Ceph volume is unhealthy.
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Node Problem Detector provides a generic interface for reporting problems on a node. A project like medik8s can remedy node problems once they are reported.
The NodeGetVolumeStats operation in the current CSI Specification (v1.8.0)
defines the VolumeCondition as an alpha feature. Very few CSI-drivers seem
to implement the volume condition at the moment. Drivers are required to
implement the feature, and expose VOLUME_CONDITION as a
NodeServiceCapability, otherwise the Volume Condition Checker will not be
able to check the condition of the volume.