Windows Server Failover Cluster for SAP ASCS/SCS instance with Azure Shared Disk

This template will provision a base two-node Windows Server Failover Cluster with Azure Shared Disk. The resulting cluster deployment is intended for use with SAP ASCS/SCS workloads for highly available deployments on the Azure cloud platform. The clustered SAP workloads will be provisioned by SAP setup tools.

This template creates the following resources in the selected Azure Region:

• Proximity Placement Group and Availability Set for Azure VMs
• Two Azure VMs running Windows Server 2019 or Windows Server 2016 for cluster nodes.
• Azure VM DSC Extensions to prepare and configure the Windows Server Failover Cluster
• Azure Shared Data Disk for Data
• Cluster Witness resources (either Storage Account or Shared Disk depending on value of witnessType template parameter)
• Internal Load Balancer to provide a listener IP Address for clustered SAP workload.
• Azure Load Balancer for SNAT support for outbound requests.

Prerequisites

To successfully deploy this template, the following must already be provisioned in your subscription:

• Azure Virtual Network with subnet defined for cluster node VMs and ILB
• Windows Server Active Directory and AD-integrated Dynamic DNS reachable from Azure Virtual Network
• Subnet IP address space defined in AD Sites and Services
• Custom DNS Server Settings configured on Azure Virtual Network to point to AD-integrated Dynamic DNS servers

Template Deployment Notes

• existingSubnetResourceId parameter

  • When deploying this template, you must supply a valid Azure Resource ID for an existing Virtual Network subnet on which to provision the cluster instances. You can find the Azure Resource ID value to use by running the PowerShell cmdlet below.

  (Get-AzVirtualNetwork -Name $(Read-Host -Prompt "Existing VNET name")).Subnets.Id

• To deploy the required Azure VNET and Active Directory infrastructure, if not already in place, you may use this template to deploy the prerequisite infrastructure.

• Currently, Azure Shared Disk is a Preview feature and is available in a subset of Azure regions. Please review the official documentation for more details and current status for this feature.

Deploying Sample Templates

Click the button below to deploy from the portal:

Tags: cluster, ha, shared disk, windows server 2019, ws2019