Log ship timing of HANA System replication .

Hi , I'm researching about performance of system replication.

I can't understand about log ship timing from some of docs.

About sync replication mode , It works like following ?

So it means "Sync mode need x2 transaction time + network delay" .... I doubt this .

Another idea , It works like following ?

Which is close current HANA work ? Just I want to know Sync mode need x2 transaction time (from single node) or not .

Regards,

JT

And How about ASYNC ? Does anyone measure one transaction performance on single environment and replication environment?