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SAP HANA Replication Modes

Updated May 18, 2018

Which modes of SAP HANA system replication are available?

The following SAP HANA system replication modes exist:

Mode

Details

 Behaviour when secondary system is not available

Synchronous

Primary system waits until secondary system has received data and persisted it to disk.

Primary system waits until

global.ini -> [system_replication] -> logshipping_timeout

is exceeded (default: 30 s) and then proceeds without replicating data.

Synchronous in-memory

Primary system waits until secondary system has received data.

Primary system waits until

global.ini -> [system_replication] -> logshipping_timeout

is exceeded (default: 30 s) and then proceeds without replicating data.

Synchronous full sync (SPS 08 and higher)

Primary system waits until secondary system has received data and persisted it to disk.

Primary system is blocked until secondary system becomes available.

Asynchronous

Primary system doesn't have to wait for secondary system.

Primary system proceeds without replicating data.


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