on 10-31-2014 1:04 PM
HI ,
I read some of documents for HANA System replication.
I understand about system replication has performance impact (than no-replication environment) .
And system replication has 3 mode .
About HANA transaction performance , If network speed is same condition , my understand is following . Is it right ?
Fast
| no replication
| Asynchronous mode ----- (no replication + log ship to secondary time)
| Synchronous in memory mode ---- ( Async + write log to secondary delta + ack to primary )
| Synchronous mode ---- ( Sync in memory + log persisted )
Slow
Regards,
JT
Yes.
Normally we use sync for HA on a local 10GBe network and async for DR on a remote 1GBe network.
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Hello both,
A good question and answer, I almost skip thinking this during study and practice...
Thanks for sharing
Regards,
Tong Ning
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