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Merge pull request #177723 from rdeltcheva/hana-scaleout-rhel-upd
correct resource names in RHEL 8 Active/Active config
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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: 10/22/2021
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ms.date: 10/26/2021
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ms.author: juergent
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ms.custom: H1Hack27Feb2017
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In this section, you find documents about Microsoft Power BI integration into SAP data sources as well as Azure Data Factory integration into SAP BW.
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## Change Log
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- October 26, 2021: Change in [SAP HANA scale-out HSR with Pacemaker on Azure VMs on RHEL](./sap-hana-high-availability-scale-out-hsr-rhel.md) to update resource names in HANA scale-out Active/Active (Read Enabled) configuration
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- October 19, 2021: Change in [SAP HANA scale-out HSR with Pacemaker on Azure VMs on RHEL](./sap-hana-high-availability-scale-out-hsr-rhel.md) to add instructions for HANA scale-out Active/Active (Read Enabled) configuration
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- October 11, 2021: Change in [Cluster an SAP ASCS/SCS instance on a Windows failover cluster by using a cluster shared disk in Azure](./sap-high-availability-guide-wsfc-shared-disk.md), [Prepare the Azure infrastructure for SAP HA by using a Windows failover cluster and shared disk for SAP ASCS/SCS](./sap-high-availability-infrastructure-wsfc-shared-disk.md) and [SAP ASCS/SCS instance multi-SID high availability with Windows server failover clustering and Azure shared disk](./sap-ascs-ha-multi-sid-wsfc-azure-shared-disk.md) to add instructions about zone redundant storage (ZRS) for Azure shared disk support
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- October 08, 2021: Change in [SAP HANA scale-out HSR with Pacemaker on Azure VMs on SLES](./sap-hana-high-availability-scale-out-hsr-suse.md), [HA for SAP HANA scale-up with ANF on RHEL](./sap-hana-high-availability-netapp-files-red-hat.md) and [SAP HANA scale-out HSR with Pacemaker on Azure VMs on RHEL](./sap-hana-high-availability-scale-out-hsr-rhel.md) to add defaults in sudoers file and update for HANA scale-out(for HANA srHook)

articles/virtual-machines/workloads/sap/sap-hana-high-availability-scale-out-hsr-rhel.md

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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: 10/19/2021
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ms.date: 10/26/2021
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ms.author: radeltch
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# RHEL 8.x:
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pcs constraint location g_ip_HN1_03 rule score=500 role=master hana_hn1_roles eq "master1:master:worker:master" and hana_hn1_clone_state eq PROMOTED
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pcs constraint location g_secip_HN1_03 rule score=50 hana_hn1_roles eq 'master1:master:worker:master'
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pcs constraint order promote msl_SAPHana_HN1_HDB03-clone then start g_ip_HN1_03
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pcs constraint order promote SAPHana_HN1_HDB03-clone then start g_ip_HN1_03
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pcs constraint order start g_ip_HN1_03 then start g_secip_HN1_03
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pcs constraint colocation add g_secip_HN1_03 with Slave msl_SAPHana_HN1_HDB03-clone 5
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pcs constraint colocation add g_secip_HN1_03 with Slave SAPHana_HN1_HDB03-clone 5
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# RHEL 7.x:
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pcs constraint location g_ip_HN1_03 rule score=500 role=master hana_hn1_roles eq "master1:master:worker:master" and hana_hn1_clone_state eq PROMOTED
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- When cluster resource **SAPHana_HN1_HDB03** moves to the secondary site (**S2**), the second virtual IP will move to the other site, i.e. to **hana-s1-db1**. If you have configured AUTOMATED_REGISTER="false" and HANA system replication is not registered automatically, then the second virtual IP will run on **hana-s2-db1**.
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- When testing server crash, the second virtual IP resources (**secvip_HN1_HDB03**) and Azure load balancer port resource (**secnc_HN1_HDB03**) will run on the primary server alongside the primary virtual IP resources. While the secondary server is down, the applications that are connected to the read-enabled HANA database will connect to the primary HANA database. The behavior is expected - it allows applications that are connected to the read-enabled HANA database to operate, while a secondary server is unavailable.
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- When testing server crash, the second virtual IP resources (**secvip_HN1_03**) and Azure load balancer port resource (**secnc_HN1_03**) will run on the primary server alongside the primary virtual IP resources. While the secondary server is down, the applications that are connected to the read-enabled HANA database will connect to the primary HANA database. The behavior is expected - it allows applications that are connected to the read-enabled HANA database to operate, while a secondary server is unavailable.
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- During failover and fallback, the existing connections for applications, using the second virtual IP to connect to the HANA database may be interrupted.
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