SAP HANA SYSTEM REPLICATION SETUP with Hands-on Lab Access

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Description: Introduction to System ReplicationSAP HANA system replication is a mechanism for ensuring the high availability of your SAP HANA system.What is system replication?System replication is SAP's recommended configuration for addressing SAP HANA outage reduction due to planned maintenance, faults, and disasters. It supports a recovery point objective (RPO) of 0 seconds and a recovery time objective (RTO) measured in minutes.System replication is set up so that a secondary system is configured as an exact copy of the active primary system, with the same number of active hosts in each system. The number of standby hosts need not be identical. Furthermore, it requires a reliable link between the primary and secondary systems.Each service of the primary system communicates pairwise with a counterpart in the secondary system. The main difference to the primary system is that the secondary system does not accept requests or queries. The secondary system can accept queries only in an Active/Active (read enabled) configuration. For more information, see SAP HANA System Replication with Active/Active (Read Enabled).The secondary system can be located near the primary system to serve as a rapid failover solution for planned downtime, or to handle storage corruption or other local faults. Alternatively or additionally, a secondary system can be installed in a remote data center for disaster recovery. The instances in the secondary system operate in live replication mode. In this mode all secondary system services constantly communicate with their primary counterparts, replicate and persist data and logs, and typically load data to memory. The log and data can be compressed before shipping. For more information, see Data and Log Compression.How does system replication work?Once SAP HANA system replication is enabled, each server process on the secondary system establishes a connection with its primary system counterpart and requests a sna
Category: IT & Software > Other IT & Software > SAP HANA
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