https://azure.microsoft.com/en-ca/pricing/details/container-storage/
Azure Container Storage - Pricing | Microsoft Azure
Get Azure Container Storage pricing information. Try popular services free with an Azure free account, and pay as you go with no upfront costs.
azure container storagepricingmicrosoft
https://docs.okd.io/4.21/storage/container_storage_interface/persistent-storage-csi-azure.html
Azure Disk CSI Driver Operator - Using Container Storage Interface (CSI) | Storage | OKD 4.21