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HANA Multi-host Replication Certificates

Friends!

Hana 3 host system version 97
SUSE linux server 11 sp3

I create a system with same topology version 10

Add new system as replication slave,

replication mode: sync

1.) Do Certificates replicate over?

2.) Does all XS engine Content replicate over?

I have been stuck in some old sap cockpit, webdispatcher ui problems during recovery and update process.

I have been updating my hana system and then Recovering and that order of operations is overwriting the updates in xs engine administration UI.

Would replicating over write my xs engine administration ui? /sap/hana/xs/admin OR /sap/xs/admin/webdisptacher/admin ?

Thank you for your time and diligence!

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Former Member
replied

Yes, the number of nodes in the secondary system has to be equal to the number of active nodes in the primary system - so you can only add standby nodes.

below link takes you to admin guide section "Use System Replication for Near Zero Downtime Upgrades" - this explains how you can use secondary for minimal or zero down time maintenance of primary system:

SAP HANA Administration Guide - SAP Library

hdbnsutil  -  is the command line tool which helps you to setup and work with system replication.

Set up System Replication with hdbnsutil - SAP HANA Administration Guide - SAP Library

to add host you have to use resident hdblcm or hdblcmgui or hdblcm web

Adding Hosts to an SAP HANA System - SAP HANA Administration Guide - SAP Library

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