SAP on AWS · SAP System & Application-Server Architecture on AWS

Why can't you use a normal VPC IP (or Elastic IP) for SAP HA failover across AZs on AWS, and what makes an overlay IP reachable from on-prem?

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More in SAP System & Application-Server Architecture on AWS

Your AAS sit in two AZs for HA and some critical batch jobs run slow. What architecture choice fixes it, and why isn't even-spreading the goal here?

On AWS, is an 'SAP instance' the same thing as an 'EC2 instance', and what one property distinguishes them?

On the same instance (e.g. x2iedn.32xlarge), TDI v5 allows 4 TiB for HANA vs 2.7 TiB under TDI v4. What's the catch that decides which spec you can actually claim?

Choosing storage for SAP app-server volumes vs shared file systems on AWS — what's the discriminating factor, and why isn't the certified-but-pricey tier the default?

For DR of the SAP database itself, why reach for database-native replication instead of (or alongside) storage-based DRS?

In an SAP HA setup, which component owns the SAP lock table and which keeps it from being lost on failover — and why must ERS sit where it does?

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