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Failback to primary HANA after live operations at DR site

May 24, 2017 at 11:23 AM

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Suppose we have 1 TB HANA appliance (with 5 TB of persistent data in Disks) in primary site.

As part of test, the equivalent HANA system takes over in the DR site and the HANA system in primary site is down.

After 10 days of operations from DR site, we need to failback to Primary HANA system. In 10 days, 1 TB of data has changed. So what will happen

a) Full replication of data from DR HANA to Primary HANA is needed

b) Only 1 TB of changed data will be synced from DR to Primary HANA

During either of the Sync options above, will the HANA in DR site be operational for Business operations?

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