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Merge pull request #105027 from rdeltcheva/sles-msid
Add the link to the SUSE official multi-SID cluster guide
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articles/virtual-machines/workloads/sap/get-started.md

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ms.topic: article
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ms.tgt_pltfrm: vm-linux
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ms.workload: infrastructure-services
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ms.date: 02/13/2020
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ms.date: 02/20/2020
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ms.author: juergent
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ms.custom: H1Hack27Feb2017
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## Change Log
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- 02/20/2020: Change in [High availability for SAP NetWeaver on Azure VMs on SLES multi-SID guide](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/high-availability-guide-suse-multi-sid) to add a link to the SUSE multi-SID cluster guide
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- 02/13/2020: Change in [Azure VMs high availability for SAP NetWeaver on RHEL](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/high-availability-guide-rhel) and [Azure VMs high availability for SAP NetWeaver on RHEL with Azure NetApp Files](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/high-availability-guide-rhel-netapp-files) to align the cluster resources timeouts to the Red Hat timeout recommendations
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- 02/11/2020: Release of [SAP HANA on Azure Large Instance migration to Azure Virtual Machines](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/hana-large-instance-virtual-machine-migration)
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- 02/07/2020: Change in [Public endpoint connectivity for VMs using Azure Standard ILB in SAP HA scenarios](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/high-availability-guide-standard-load-balancer-outbound-connections) to update sample NSG screenshot

articles/virtual-machines/workloads/sap/high-availability-guide-suse-multi-sid.md

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ms.topic: article
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ms.workload: infrastructure-services
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ms.date: 01/16/2020
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ms.date: 02/20/2020
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ms.author: radeltch
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* [SUSE SAP HA Best Practice Guides][suse-ha-guide]
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The guides contain all required information to set up Netweaver HA and SAP HANA System Replication on-premises. Use these guides as a general baseline. They provide much more detailed information.
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* [SUSE High Availability Extension 12 SP3 Release Notes][suse-ha-12sp3-relnotes]
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* [SUSE Support for multi-SID cluster](https://www.suse.com/c/sap-workloads-going-green/)
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* [SUSE multi-SID cluster guide for SLES 12 and SLES 15](https://documentation.suse.com/sbp/all/html/SBP-SAP-MULTI-SID/index.html)
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## Overview
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The virtual machines, that participate in the cluster must be sized to be able to run all resources, in case failover occurs. Each SAP SID can fail over independent from each other in the multi-SID high availability cluster. If using SBD fencing, the SBD devices can be shared between multiple clusters.
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To achieve high availability, SAP NetWeaver requires highly available NFS shares. In this example we assume the SAP NFS shares are either hosted on highly available [NFS file server](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/high-availability-guide-suse-nfs), which can be used by multiple SAP systems. Or the shares are deployed on [Azure NetApp files NFS volumes](https://docs.microsoft.com/azure/azure-netapp-files/azure-netapp-files-create-volumes).
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To achieve high availability, SAP NetWeaver requires highly available NFS shares. In this example, we assume the SAP NFS shares are either hosted on highly available [NFS file server](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/high-availability-guide-suse-nfs), which can be used by multiple SAP systems. Or the shares are deployed on [Azure NetApp files NFS volumes](https://docs.microsoft.com/azure/azure-netapp-files/azure-netapp-files-create-volumes).
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![SAP NetWeaver High Availability overview](./media/high-availability-guide-suse/ha-suse-multi-sid.png)
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