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SAP NetWeaver on SQL Server

This NetWeaver on SQL Server application solution illustrates how a user request flows through an SAP landscape built on NetWeaver using Azure Virtual Machines to host SAP applications and a SQL Server database. This system takes advantage of OS clustering for high availability, premium storage for faster storage performance and scalability, SQL Server AlwaysOn capability for replication and a full disaster recovery (DR) configuration for 99.95 percent system availability.

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Using Azure Active Directory synchronised with on-premises Active Directory, SAP application user authenticates from on-premises to SAP landscape on Azure with single sign-on credentials.

Azure high speed Express Route Gateway connects on-premises network to Azure Virtual Machines and other resources securely.

Sales order request flows into highly available SAP ABAP SAP Central Services (ASCS) and then through SAP application servers running on Azure Virtual Machines scale out file server in an Azure VM

The request moves from the SAP app server to SQL Server running on a primary high-performance Azure VM.

Primary (active) and secondary (standby) servers running on SAP certified virtual machines are clustered at OS level for 99.95 percent availability. Data replication is handled through SQL Server AlwaysOn in synchronous mode from primary to secondary, enabling zero Recovery Point Objective (RPO).

SQL Server data is persisted to high-performance Azure Premium Storage.

SQL Server data is replicated Disaster recovery virtual machine in another Azure region through Azure’s high speed backbone network and using SQL Server’s AlwaysOn replication in asynchronous mode. The disaster recovery VM can be smaller than the production VM to save costs.

VMs on the disaster recovery region can be used for nonproduction work to save costs.

SAP app server with ASCS on disaster recovery side can be in standby shutdown mode and can be started when needed to save costs.

  1. 1 Using Azure Active Directory synchronised with on-premises Active Directory, SAP application user authenticates from on-premises to SAP landscape on Azure with single sign-on credentials.
  2. 2 Azure high speed Express Route Gateway connects on-premises network to Azure Virtual Machines and other resources securely.
  3. 3 Sales order request flows into highly available SAP ABAP SAP Central Services (ASCS) and then through SAP application servers running on Azure Virtual Machines scale out file server in an Azure VM
  4. 4 The request moves from the SAP app server to SQL Server running on a primary high-performance Azure VM.
  5. 5 Primary (active) and secondary (standby) servers running on SAP certified virtual machines are clustered at OS level for 99.95 percent availability. Data replication is handled through SQL Server AlwaysOn in synchronous mode from primary to secondary, enabling zero Recovery Point Objective (RPO).
  1. 6 SQL Server data is persisted to high-performance Azure Premium Storage.
  2. 7 SQL Server data is replicated Disaster recovery virtual machine in another Azure region through Azure’s high speed backbone network and using SQL Server’s AlwaysOn replication in asynchronous mode. The disaster recovery VM can be smaller than the production VM to save costs.
  3. 8 VMs on the disaster recovery region can be used for nonproduction work to save costs.
  4. 9 SAP app server with ASCS on disaster recovery side can be in standby shutdown mode and can be started when needed to save costs.

Implementation guidance

Products/Description Documentation

Virtual Machines

Information on Virtual Machines for SAP application servers.

Premium Storage

Microsoft Azure Premium Storage provides improved throughput and less variability in I/O latencies. For improved performance, Premium Storage uses solid state disk (SSD) in Azure Storage nodes and read cache which is backed by the local SSD of an Azure compute node.

Related solution architectures

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SAP S/4HANA on HANA large instances with HA and DR

This solution architecture illustrates how a user request flows through an SAP landscape built on high-performance Azure Virtual Machines and an in-memory HANA database running on HANA large instances for unparalleled scalability and performance. This system takes advantage of OS clustering for database performance, high availability using HANA system replication and a full disaster recovery (DR) configuration for guaranteed system availability.