SAP HANA 2.0 High Availability Step By Step process

Introduction

This blog post walk’s you through the step by step process for SAP HANA 2.0 high availability setup.  How to add a stand by host.

A distributed HANA(scale out) setup need 2 servers (one worker, another  standby).

Note : Both Host1 and Host2  server’s date and time should be same.

Below mentioned are the steps that need to followed for high availability setup.

Host 1 (worker)

SID = HDB

Instance Number = 00

Hostname = ca

Host Role = worker

Host 2 (Standby)

SID = HDB

Instance Number = 00

Hostname = portal

Host Role = Standby

NFS(network file system) is used to share the files between host1(worker) and host2(standby) (/hana/log, /hana/shared, /hana/data)

*Operating system used SUSE Linux SP15

• Configure NFS server on host1 (ca)

• Configure NFS client on host2 (portal)

•    Install SID= HDB, master node (Host1) using installation media’s HDBLCM

• On master node(Host1) execute action configure_internal_network (using resident HDBLCM) “./hdblcm –action=configure_internal_network“

• Inter-service communication is configured now

• On second node (Host2) navigate to /hana/shared/SID/hdblcm and execute “./hdblcm” to add host to master node

• The below screen, shows services after adding standby node

• Hosts – after adding standby node:

I hope this blog post information is helpful. can go through the below links for further reference (S-User needed to access the links)

https://help.sap.com/doc/eb75509ab0fd1014a2c6ba9b6d252832/2.0.00/en-US/SAP_HANA_Administration_Guide_en.pdf