Merge pull request #232774 from andyzhangx/patch-65

Update csi-storage-drivers.md

Author: prmerger-automator[bot]

articles/aks/csi-storage-drivers.md

@@ -2,7 +2,7 @@
 title: Container Storage Interface (CSI) drivers on Azure Kubernetes Service (AKS)
 description: Learn about and deploy the Container Storage Interface (CSI) drivers for Azure Disks and Azure Files in an Azure Kubernetes Service (AKS) cluster
 ms.topic: article
-ms.date: 01/19/2023
+ms.date: 03/30/2023
 
 ---
 
@@ -17,11 +17,13 @@ The CSI storage driver support on AKS allows you to natively use:
 - [**Azure Blob storage**](azure-blob-csi.md) can be used to mount Blob storage (or object storage) as a file system into a container or pod. Using Blob storage enables your cluster to support  applications that work with large unstructured datasets like log file data, images or documents, HPC, and others. Additionally, if you ingest data into [Azure Data Lake storage](../storage/blobs/data-lake-storage-introduction.md), you can directly mount and use it in AKS without configuring another interim filesystem.
 
 > [!IMPORTANT]
-> Starting with Kubernetes version 1.26, in-tree persistent volume types *kubernetes.io/azure-disk* and *kubernetes.io/azure-file* are deprecated and will no longer be supported. Removing these drivers following their deprecation is not planned, however you should migrate to the corresponding CSI drivers *disks.csi.azure.com* and *file.csi.azure.com*. To review the migration options for your storage classes and upgrade your cluster to use Azure Disks and Azure Files CSI drivers, see [Migrate from in-tree to CSI drivers][migrate-from-in-tree-to-csi-drivers].
+> Starting with Kubernetes version 1.26, in-tree persistent volume types *kubernetes.io/azure-disk* and *kubernetes.io/azure-file* are deprecated and will no longer be supported. Removing these drivers following their deprecation is not planned, however you should migrate to the corresponding CSI drivers *disks.csi.azure.com* and *file.csi.azure.com*. To review the migration options for your storage classes and upgrade your cluster to use Azure Disks and Azure Files CSI drivers, see [Migrate from in-tree to CSI drivers][migrate-from-in-tree-csi-drivers].
 >
 > *In-tree drivers* refers to the storage drivers that are part of the core Kubernetes code opposed to the CSI drivers, which are plug-ins.
 
 > [!NOTE]
+> It is recommended to delete the corresponding PersistentVolumeClaim object instead of the PersistentVolume object when deleting a CSI volume. The external provisioner in the CSI driver will react to the deletion of the PersistentVolumeClaim and based on its reclamation policy, it will issue the DeleteVolume call against the CSI volume driver commands to delete the volume. The PersistentVolume object will then be deleted.
+> 
 > Azure Disks CSI driver v2 (preview) improves scalability and reduces pod failover latency. It uses shared disks to provision attachment replicas on multiple cluster nodes and integrates with the pod scheduler to ensure a node with an attachment replica is chosen on pod failover. Azure Disks CSI driver v2 (preview) also provides the ability to fine tune performance. If you're interested in participating in the preview, submit a request: [https://aka.ms/DiskCSIv2Preview](https://aka.ms/DiskCSIv2Preview). This preview version is provided without a service level agreement, and you can occasionally expect breaking changes while in preview. The preview version isn't recommended for production workloads. For more information, see [Supplemental Terms of Use for Microsoft Azure Previews](https://azure.microsoft.com/support/legal/preview-supplemental-terms/).
 
 ## Prerequisites