There is a command group 'az_k8s runtime_storage class'. This group of commands could 'manage storage classes of arc kubernetes clusters'. The group of commands has global parameter '--debug' which means 'Increase logging verbosity to show all debug logs.'. The group of commands has global parameter '--help -h' which means 'Show this help message and exit.'. The group of commands has global parameter '--only-show-errors' which means 'Only show errors, suppressing warnings.'. The group of commands has global parameter '--output -o' which means 'Output format.'. The group of commands has global parameter '--query' which means 'JMESPath query string. See <a href="http://jmespath.org/">http://jmespath.org/</a> for more information and examples.'. The group of commands has global parameter '--subscription' which means 'Name or ID of subscription. You can configure the default subscription using `az account set -s NAME_OR_ID`.'. The group of commands has global parameter '--verbose' which means 'Increase logging verbosity. Use --debug for full debug logs.'. This group contains a child command 'az_k8s runtime_storage class_create'.The syntax is: az k8s-runtime storage-class create --resource-uri
                                    --storage-class-name
                                    [--access-modes]
                                    [--allow-volume-expansion {allow, disallow}]
                                    [--data-resilience {dataresilient, notdataresilient}]
                                    [--failover-speed {fast, notavailable, slow, super}]
                                    [--limitations]
                                    [--mount-options]
                                    [--no-wait {0, 1, f, false, n, no, t, true, y, yes}]
                                    [--performance {basic, premium, standard, ultra, undefined}]
                                    [--priority]
                                    [--provisioner]
                                    [--type-properties]
                                    [--volume-binding-mode {immediate, waitforfirstconsumer}]. The 1th example of the child command would be to use it to 'create an rwx storage class on top of managed csi storage class', the syntax is: az k8s-runtime storage-class create --resource-uri subscriptions/00000000-1111-2222-3333-444444444444/resourceGroups/example/providers/Microsoft.Kubernetes/connectedClusters/cluster1 --storage-class-name rwxsc --type-properties rwx.backing-storage-class-name=managed-csi. The 2th example of the child command would be to use it to 'create a blob storage class', the syntax is: az k8s-runtime storage-class create --resource-uri subscriptions/00000000-1111-2222-3333-444444444444/resourceGroups/example/providers/Microsoft.Kubernetes/connectedClusters/cluster1 --storage-class-name blobsc --type-properties blob.azure-storage-account-key=accountkey blob.azure-storage-account-name=accountname. The parameter '--resource-uri' is required. It is used to the fully qualified azure resource manager identifier of the resource.. The parameter '--storage-class-name' is required. It is used to the name of the the storage class.. The parameter '--access-modes' is optional. the access mode: [readwriteonce, readwritemany] or [readwriteonce]  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--allow-volume-expansion' is optional. volume can be expanded or not.. The parameter '--data-resilience' is optional. allow single data node failure.. The parameter '--failover-speed' is optional. failover speed: na, slow, fast.. The parameter '--limitations' is optional. limitations of the storage class  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--mount-options' is optional. additional mount options  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--no-wait' is optional. do not wait for the long-running operation to finish.. The parameter '--performance' is optional. performance tier.. The parameter '--priority' is optional. selection priority when multiple storage classes meet the criteria. 0: highest, -1: never use.. The parameter '--provisioner' is optional. provisioner name.. The parameter '--type-properties' is optional. properties of the storageclass  support shorthand-syntax, json-file and yaml-file. try "??" to show more.. The parameter '--volume-binding-mode' is optional. binding mode of volumes: immediate, waitforfirstconsumer.. 