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/
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
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.
On the SAP HANA Academy, there is a full playlist covering all aspects of system replication: bit.ly/SAPHANASR.
For more information see:
- SAP HANA System Replication videos now available on the SAP HANA Academy
- SAP HANA Administration on sap.com > Products > SAP HANA > Capabilities
- SAP How-to Guide – How To Perform System Replication for SAP HANA (SPS 12)
SAP Help Portal
- SAP HANA High Availability (New and Changed) – SAP HANA Release Notes
- Active/Active (Read Enabled) – SAP HANA Administration Guide
- Managing System Replication in the SAP HANA Cockpit – SAP HANA Administration Guide
- 2380257 – SAP HANA Platform 2.0 SPS 00 Release Note
- 2380291 – SAP HANA 2.0 Cockpit Central Release Note
- 2369981 – Required configuration steps for authentication with HANA System Replication
- 1999880 – FAQ: SAP HANA System Replication
Thank you for watching
You can view more online videos and hands-on use cases to help you answer the What, How and Why questions about SAP HANA and the SAP HANA Cloud Platform on the SAP HANA Academy at youtube.com/saphanaacademy.