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Introduction

In the upcoming weeks, we will be posting new videos to the SAP HANA Academy to show new features and functionality introduced with SAP HANA 2.0 Support Package Stack (SPS) 00.

The topic of this blog is high availability and system replication.

For the complete list of blogs by the SAP HANA Academy for SAP HANA 2.0, see: https://blogs.sap.com/2016/12/01/whats-new-with-sap-hana-2.0-sps-00-by-the-sap-hana-academy/

Tutorial Video

What’s New?

SAP HANA Cockpit

In the previous blog post about system administration, we have already discussed the new SAP HANA cockpit 2.0. For system replication, all the core administration activities can now be performed using this tool. This includes: 

  • Registering primary and secondary systems
  • Sytem replication monitoring
  • Take over and failback
  • Disabling

For more information, see the section Managing System Replication in the SAP HANA Cockpit in the SAP HANA Administration Guide.

Active/Active (Read Enabled)

Another great new system replication feature is the new Log Replay – Read Access operation mode, which enables read-only access on the secondary system.

This means that the secondary system can now conveniently be used for reporting purposes. For more information, see the section Active/Active (Read Enabled) in the SAP HANA Administration Guide.

System PKI SSFS

With SAP HANA 2.0, system replication requires authentication for data and log shipping channels. For this, the certificates from the system PKI SSFS store are used. For the current release, automatic certificate copying is not yet integrated into the registration process for the secondary host and needs to be performed manually using file copy.

Using the secure copy command to copy the PKI SSFS store and key file from the primary to the secondary host:

# set the variables to match your environment
export RSECSSFS=/hana/shared/SHA/global/security/rsecssfs
export SIDADM=shaadm
export SECONDARY=mo-1caae8fcb.mo.sap.corp

# copy the system PKI SSFS store and key file from the primary to the secondary host
scp $RSECSSFS/data/SSFS_SHA.DAT $SIDADM@$SECONDARY:$RSECSSFS/data/
scp $RSECSSFS/key/SSFS_SHA.KEY $SIDADM@$SECONDARY:$RSECSSFS/key/

For more information, see SAP Note 2369981 – Required configuration steps for authentication with HANA System Replication.

Playlist

On the SAP HANA Academy, there is a full playlist covering all aspects of system replication:

Documentation

For more information see:

SAP HANA

SAP Help Portal

SAP Notes

Thank you for watching

The SAP HANA Academy provides free online video tutorials for the developers, consultants, partners and customers of SAP HANA.

Topics range from practical how-to instructions on administration, data loading and modeling, and integration with other SAP solutions, to more conceptual projects to help build out new solutions using mobile applications or predictive analysis.

For the full library, see SAP HANA Academy Library – by the SAP HANA Academy

For the full list of blogs, see Blog Posts – by the SAP HANA Academy

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