SAP S/4HANA Administration · High Availability

Simply restarting the Enqueue Server on another host would lose every lock. What component does an HA setup add to prevent that, and how is it arranged in the cluster?

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More in High Availability

Your SAP HANA update normally needs the database shut down. How does running HANA in a high-availability setup with System Replication shrink that downtime to almost nothing?

What single objective drives every high-availability decision for SAP S/4HANA, and why is protecting the SAP software layer alone not enough?

The two timeout parameters of a Rolling Kernel Switch — what do their defaults control, and why must the start-wait value stay above rdisp/server_startup/max_time?

Once a Rolling Kernel Switch is running, how can you monitor its progress and where is it logged for later review?

Your Rolling Kernel Switch on a busy production system is only half done after two days — why is dragging it out much longer a bad idea?

How can you patch SAP HANA to a newer revision with almost no downtime by leaning on System Replication?

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