Unity

Release Notes - CSI Unity v2.1.0

New Features/Changes

  • Added support for OpenShift v4.9.
  • Added support for CSI spec 1.5.
  • Added support for new access modes in CSI Spec 1.5.
  • Added ability to associate a tenant with storage volumes. -
  • Added support for volume health monitoring.

Fixed Issues

Known Issues

Issue Workaround
Topology-related node labels are not removed automatically. Currently, when the driver is uninstalled, topology-related node labels are not getting removed automatically. There is an open issue in the Kubernetes to fix this. Until the fix is released, remove the labels manually after the driver un-installation using command kubectl label node <node_name> - - … Example: kubectl label node csi-unity.dellemc.com/array123-iscsi- Note: there must be - at the end of each label to remove it.
NFS Clone - Resize of the snapshot is not supported by Unity Platform. Currently, when the driver takes a clone of NFS volume, it succeeds. But when the user tries to resize the NFS volumesnapshot, the driver will throw an error. The user should never try to resize the cloned NFS volume.
Delete namespace that has PVCs and pods created with the driver. The External health monitor sidecar crashes as a result of this operation. Deleting the namespace deletes the PVCs first and then removes the pods in the namespace. This brings a condition where pods exist without their PVCs and causes the external-health-monitor sidecar to crash. This is a known issue and has been reported at https://github.com/kubernetes-csi/external-health-monitor/issues/100

Note:

  • Support for kurbernetes alpha features like Volume Health Monitoring and RWOP (ReadWriteOncePod) access mode introduced in the release will not be available in Openshift environment as Openshift doesn’t support enabling of alpha features for Production Grade clusters.