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Copy file name to clipboardExpand all lines: articles/virtual-machines/workloads/sap/high-availability-guide-suse-multi-sid.md
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@@ -9,7 +9,7 @@ ms.service: virtual-machines-sap
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ms.topic: article
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ms.tgt_pltfrm: vm-windows
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ms.workload: infrastructure-services
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ms.date: 01/24/2022
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ms.date: 03/25/2022
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ms.author: radeltch
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---
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@@ -96,47 +96,12 @@ To achieve high availability, SAP NetWeaver requires highly available NFS shares
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The NFS server, 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 is required to use a virtual IP address. We recommend using [Standard load balancer](../../../load-balancer/quickstart-load-balancer-standard-public-portal.md).
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The following list shows the configuration of the (A)SCS and ERS load balancer for this multi-SID cluster example with three SAP systems. You will need separate frontend IP, health probes, and load-balancing rules for each ASCS and ERS instance for each of the SIDs. Assign all VMs, that are part of the ASCS/ASCS cluster to one backend pool.
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### (A)SCS
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* Frontend configuration
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* IP address for NW1: 10.3.1.14
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* IP address for NW2: 10.3.1.16
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* IP address for NW3: 10.3.1.13
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* Probe Ports
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* Port 620<strong><nr></strong>, therefore for NW1, NW2, and NW3 probe ports 620**00**, 620**10** and 620**20**
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* Load-balancing rules -
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* create one for each instance, that is, NW1/ASCS, NW2/ASCS and NW3/ASCS.
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* If using Standard Load Balancer, select **HA ports**
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* If using Basic Load Balancer, create Load balancing rules for the following ports
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* 32<strong><nr></strong> TCP
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* 36<strong><nr></strong> TCP
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* 39<strong><nr></strong> TCP
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* 81<strong><nr></strong> TCP
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* 5<strong><nr></strong>13 TCP
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* 5<strong><nr></strong>14 TCP
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* 5<strong><nr></strong>16 TCP
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### ERS
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* Frontend configuration
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* IP address for NW1 10.3.1.15
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* IP address for NW2 10.3.1.17
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* IP address for NW3 10.3.1.19
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* Probe Port
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* Port 621<strong><nr></strong>, therefore for NW1, NW2, and N# probe ports 621**02**, 621**12** and 621**22**
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* Load-balancing rules - create one for each instance, that is, NW1/ERS, NW2/ERS and NW3/ERS.
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* If using Standard Load Balancer, select **HA ports**
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* If using Basic Load Balancer, create Load balancing rules for the following ports
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* 32<strong><nr></strong> TCP
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* 33<strong><nr></strong> TCP
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* 5<strong><nr></strong>13 TCP
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* 5<strong><nr></strong>14 TCP
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* 5<strong><nr></strong>16 TCP
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* Backend configuration
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* Connected to primary network interfaces of all virtual machines that should be part of the (A)SCS/ERS cluster
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The presented configuration for this multi-SID cluster example with three SAP systems shows a load balancer with:
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* Frontend IP addresses for ASCS: 10.3.1.14 (NW1), 10.3.1.16 (NW2) and 10.3.1.13 (NW3)
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* Frontend IP addresses for ERS: 10.3.1.15 (NW1), 10.3.1.17 (NW2) and 10.3.1.19 (NW3)
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* Probe port 62000 for NW1 ASCS, 62010 for NW2 ASCS and 62020 for NW3 ASCS
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* Probe port 62102 for NW1 ASCS, 62112 for NW2 ASCS and 62122 for NW3 ASCS
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> [!IMPORTANT]
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> Floating IP is not supported on a NIC secondary IP configuration in load-balancing scenarios. For details see [Azure Load balancer Limitations](../../../load-balancer/load-balancer-multivip-overview.md#limitations). If you need additional IP address for the VM, deploy a second NIC.
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The NFS server, 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 is required to use a virtual IP address. We recommend using [Standard load balancer](../../../load-balancer/quickstart-load-balancer-standard-public-portal.md). The following list shows the configuration of the (A)SCS and ERS load balancer.
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### (A)SCS
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* Frontend configuration
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* IP address 10.0.0.7
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* Probe Port
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* Port 620<strong><nr></strong>
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* Load balancing rules
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* If using Standard Load Balancer, select **HA ports**
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* If using Basic Load Balancer, create Load balancing rules for the following ports
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* 32<strong><nr></strong> TCP
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* 36<strong><nr></strong> TCP
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* 39<strong><nr></strong> TCP
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* 81<strong><nr></strong> TCP
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* 5<strong><nr></strong>13 TCP
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* 5<strong><nr></strong>14 TCP
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* 5<strong><nr></strong>16 TCP
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* Backend configuration
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* Connected to primary network interfaces of all virtual machines that should be part of the (A)SCS/ERS cluster
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### ERS
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* Frontend configuration
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* IP address 10.0.0.8
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* Probe Port
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* Port 621<strong><nr></strong>
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* Load-balancing rules
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* If using Standard Load Balancer, select **HA ports**
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* If using Basic Load Balancer, create Load balancing rules for the following ports
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* 32<strong><nr></strong> TCP
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* 33<strong><nr></strong> TCP
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* 5<strong><nr></strong>13 TCP
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* 5<strong><nr></strong>14 TCP
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* 5<strong><nr></strong>16 TCP
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* Backend configuration
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* Connected to primary network interfaces of all virtual machines that should be part of the (A)SCS/ERS cluster
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The NFS server, 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 is required to use a virtual IP address. We recommend using [Standard load balancer](../../../load-balancer/quickstart-load-balancer-standard-public-portal.md). The presented configuration shows a load balancer with:
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* Frontend IP address 10.0.0.7 for ASCS
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* Frontend IP address 10.0.0.8 for ERS
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* Probe port 62000 for ASCS
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* Probe port 62101 for ERS
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## Setting up a highly available NFS server
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1.**Make sure to enable Floating IP**
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1. Click OK
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* Repeat the steps above to create load balancing rules for ERS (for example **nw1-lb-ers**)
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1. Alternatively, if your scenario requires basic load balancer (internal), follow these steps:
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1. Alternatively, ***only if***your scenario requires basic load balancer (internal), follow these configuraton steps instead to create basic load balancer:
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1. Create the frontend IP addresses
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1. IP address 10.0.0.7 for the ASCS
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1. Open the load balancer, select frontend IP pool, and click Add
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