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HANA scale-out with HSR on RHEL - add read enabled secondary
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articles/virtual-machines/workloads/sap/sap-hana-high-availability-scale-out-hsr-rhel.md

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@@ -1145,13 +1145,13 @@ Make sure that the cluster status is ok and that all of the resources are starte
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```
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In next section, you can find the typical set of failover tests to execute.
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In the next section, you can find the typical set of failover tests to execute.
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Be aware of the second virtual IP behavior, while testing a HANA cluster configured with read-enabled secondary:
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1. When you migrate **SAPHana_HN1_HDB03** cluster resource to **hana-s2-db1**, the second virtual IP will move to the other server **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** as the server is available and cluster services are online.
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1. 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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2. When testing server crash, the second virtual IP resources (**rsc_secip_HN1_HDB03**) and Azure load balancer port resource (**rsc_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 allows applications that are connected to read-enabled HANA database to operate, while the time secondary server is unavailable.
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2. 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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3. 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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