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Jun 18, 2018 at 05:30 AM

Hana System Replication too slow

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One of our customers face the problem that the takeover of a Hana database sometimes takes more than 35 minutes.

Environment:

Hana 2 database, size abouzt 1,25 TB, 192 CPUs, 6 TB RAM

Two system replications (A-B and B-C, A-B is synchronous, B-C asynchronous)

When doing a takeover of the B-C replication, the time taken varies from 5 minutes up to 50 minutes ehich is too much as the required RTO is 15 minutes.

What can be the reason for this effect?