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@@ -93,7 +93,7 @@ To achieve that on SUSE Linux so far it was necessary to build separate highly a
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Now it is possible to achieve SAP Netweaver HA by using shared storage, deployed on Azure NetApp Files. Using Azure NetApp Files for the shared storage eliminates the need for additional [NFS cluster](https://docs.microsoft.com/azure/virtual-machines/workloads/sap/high-availability-guide-suse-nfs). Pacemaker is still needed for HA of the SAP Netweaver central services(ASCS/SCS).
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SAP NetWeaver ASCS, SAP NetWeaver SCS, SAP NetWeaver ERS, and the SAP HANA database use virtual hostname and virtual IP addresses. On Azure, a [load balancer](https://docs.microsoft.com/azure/load-balancer/load-balancer-overview) is required to use a virtual IP address. We recommend using [Standard load balancer](https://docs.microsoft.com/azure/load-balancer/quickstart-load-balancer-standard-public-portal). The following list shows the configuration of the (A)SCS and ERS load balancer.
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@@ -138,7 +138,7 @@ SAP NetWeaver ASCS, SAP NetWeaver SCS, SAP NetWeaver ERS, and the SAP HANA datab
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SAP NetWeaver requires shared storage for the transport and profile directory. Before proceeding with the setup for Azure NetApp files infrastructure, familiarize yourself with the [Azure NetApp Files documentation][anf-azure-doc].
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Check if your selected Azure region offers Azure NetApp Files. The following link shows the availability of Azure NetApp Files by Azure region: [Azure NetApp Files Availability by Azure Region][anf-avail-matrix].
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Azure NetApp files is available in several [Azure regions](https://azure.microsoft.com/global-infrastructure/services/?products=netapp). Before deploying Azure NetApp Files, request onboarding to Azure NetApp Files, following the [Register for Azure NetApp files instructions][anf-register].
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Azure NetApp files is available in several [Azure regions](https://azure.microsoft.com/global-infrastructure/services/?products=netapp). Before deploying Azure NetApp Files, request onboarding to Azure NetApp Files, following the [Register for Azure NetApp files instructions][anf-register].
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### Deploy Azure NetApp Files resources
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@@ -152,15 +152,16 @@ The SAP Netweaver architecture presented in this article uses single Azure NetAp
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4. Delegate a subnet to Azure NetApp files as described in the [instructions Delegate a subnet to Azure NetApp Files](https://docs.microsoft.com/azure/azure-netapp-files/azure-netapp-files-delegate-subnet).
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5. Deploy Azure NetApp Files volumes, following the [instructions to create a volume for Azure NetApp Files](https://docs.microsoft.com/azure/azure-netapp-files/azure-netapp-files-create-volumes). Deploy the volumes in the designated Azure NetApp Files [subnet](https://docs.microsoft.com/rest/api/virtualnetwork/subnets). Keep in mind that the Azure NetApp Files resources and the Azure VMs must be in the same Azure Virtual Network or in peered Azure Virtual Networks. For example sapmnt<b>QAS</b>, usrsap<b>QAS</b>, etc. are the volume names and sapmnt<b>qas</b>, usrsap<b>qas</b>, etc. are the filepaths for the Azure NetApp Files volumes.
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5. Deploy Azure NetApp Files volumes, following the [instructions to create a volume for Azure NetApp Files](https://docs.microsoft.com/azure/azure-netapp-files/azure-netapp-files-create-volumes). Deploy the volumes in the designated Azure NetApp Files [subnet](https://docs.microsoft.com/rest/api/virtualnetwork/subnets). Keep in mind that the Azure NetApp Files resources and the Azure VMs must be in the same Azure Virtual Network or in peered Azure Virtual Networks. In this example we use two Azure NetApp Files volumes: sap<b>QAS</b> and trans. The file paths that are mounted to the corresponding mount points are /usrsap<b>qas</b>/sapmnt<b>QAS</b>, /usrsap<b>qas</b>/usrsap<b>QAS</b>sys, etc.
In this example, we used Azure NetApp Files for all SAP Netweaver file systems to demonstrate how Azure NetApp Files can be used. The SAP file systems that don't need to be mounted via NFS can also be deployed as [Azure disk storage](https://docs.microsoft.com/azure/virtual-machines/windows/disks-types#premium-ssd) . In this example <b>a-e</b> must be on Azure NetApp Files and <b>f-g</b> (that is, /usr/sap/<b>QAS</b>/D<b>02</b>, /usr/sap/<b>QAS</b>/D<b>03</b>) could be deployed as Azure disk storage.
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@@ -399,6 +400,30 @@ The following items are prefixed with either **[A]** - applicable to all nodes,
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<b>10.1.1.21 anftstsapers</b>
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</code></pre>
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4.**[1]** Create SAP directories in the Azure NetApp Files volume.
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Mount temporarily the Azure NetApp Files volume on one of the VMs and create the SAP directories(file paths).
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```
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# mount temporarily the volume
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sudo mkdir -p /saptmp
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# If using NFSv3
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sudo mount -t nfs -o rw,hard,rsize=65536,wsize=65536,vers=3,tcp 10.1.0.4:/sapQAS /saptmp
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# If using NFSv4.1
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sudo mount -t nfs -o rw,hard,rsize=65536,wsize=65536,vers=4.1,sec=sys,tcp 10.1.0.4:/sapQAS /saptmp
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# create the SAP directories
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sudo cd /saptmp
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sudo mkdir -p sapmntQAS
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sudo mkdir -p usrsapQASascs
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sudo mkdir -p usrsapQASers
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sudo mkdir -p usrsapQASsys
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sudo mkdir -p usrsapQASpas
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sudo mkdir -p usrsapQASaas
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# unmount the volume and delete the temporary directory
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sudo cd ..
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sudo umount /saptmp
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sudo rmdir /saptmp
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```
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## Prepare for SAP NetWeaver installation
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1. **[A]** Create the shared directories
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<pre><code>
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sudo vi /etc/auto.direct
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# Add the following lines to the file, save and exit
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*[Azure Virtual Machines deployment for SAP][deployment-guide]
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*[Azure Virtual Machines DBMS deployment for SAP][dbms-guide]
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* To learn how to establish high availability and plan for disaster recovery of SAP
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* HANA on Azure (large instances), see [SAP HANA (large instances) high availability and disaster recovery on Azure](hana-overview-high-availability-disaster-recovery.md).
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* To learn how to establish high availability and plan for disaster recovery of SAP HANA on Azure VMs, see [High Availability of SAP HANA on Azure Virtual Machines (VMs)][sap-hana-ha]
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