Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
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SAP HANA B1 installation in HA mode cannot proceed due to Azure Load Balancer ping restriction
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Sanjay Singh
40
Reputation points
We are installing SAP HANA B1 in Virtual Machine using Azure Load Balancer(ILB) as Virtual IP address (VIP). While installing SAP B1, installation script run ping and it fails as ILB VIP cannot ping. As per Microsoft ILB IP cannot ping as this expected behavior seems. Looking for assistance if any successful installation done SAP B1 HANA in HA mode using Load Balancer.
2 x VMs for SAP HANA DB behind ILB.
1 x VM SAP HANA Central server
Apricate for early answers.
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Srinud 2,810 Reputation points Microsoft Vendor2024-08-30T14:13:10.8966667+00:00 Hi Sanjay Singh,
Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.
The issue you're encountering with the SAP HANA B1 installation in HA mode due to the Azure Load Balancer ping restriction is a known behavior. The Internal Load Balancer (ILB) Virtual IP (VIP) does not respond to ping requests, as this is expected behavior in Azure.
As a workaround on this issue follow the below steps:
Make sure that the VMs behind the ILB can communicate with each other directly using their private IP addresses. It will confirm that the internal network setup is functioning correctly, independent of the load balancer.
- Verify that the Internal Load Balancer is configured with the correct backend pool, health probes, and load-balancing rules. Misconfigurations here could lead to failures in health checks or improper routing of traffic.
- Temporarily configure a basic HTTP/TCP service on the VMs and use it as the probe for the ILB. This can help confirm whether the issue is with probe configuration or with the ILB itself.
Additionally, please go through the documents below attached:
SAP HANA infrastructure configurations and operations on Azure | Microsoft Learn
https://learn.microsoft.com/en-us/azure/sap/workloads/hana-get-started
If this information is helpful, we would appreciate it if you could click the Upvote on this post.
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Sanjay Singh 40 Reputation points
2024-09-02T01:11:24.51+00:00 Hi.. Thanks for the quick answers. on the recommendation HTTP probe, it is working. But for SAP installation it uses ping command and it is failing. This is the reason checking if any references do you have where customer successfully running SAP HANA B1 in HA mode
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Srinud 2,810 Reputation points Microsoft Vendor
2024-09-04T10:59:35.63+00:00 Hi Sanjay Singh,
Thanks for getting back with the detailed explanation. This issue needs deeper investigation. I would recommend you open an SAP support case.
Here is the SAP support portal link: https://support.sap.com/en/index.html -
Sanjay Singh 40 Reputation points
2024-09-05T22:25:03.58+00:00 Hi @Srinud I cannot raise support ticket on that URL. Would you be able to check if there any successful installation with Azure load balancer for SAP HANA B1 in Microsoft Azure?
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Srinud 2,810 Reputation points Microsoft Vendor
2024-09-06T11:00:49.86+00:00 Hi Sanjay Singh,
Thank you for your patience!
Could you please try using this link: https://support.sap.com/en/index.html
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