High Availability and Disaster Tolerance
What are the SAP HANA capabilities for High Availability (HA) and Disaster Tolerance (DT)?
five 9s - 99.9% uptime across 200TB HANA environment
What is the required bandwidth to support HA/DR capabilities?
During a power failure, will the information stored in the memory be lost?
Every SAP HANA system, hence a ERP powered by SAP HANA environment, has a persistent storage to back-up all information on a constant base, from which the data of a ERP on HANA system can be restored into In-Memory.
How are the HA/DR processes/services for the non-HANA based Application Servers impacted?
They remain the same, no changes here:
SLA definitions in %:
HP Technical Whitepaper for SAP HANA Disaster Tolerant Solution
IBM Whitepaper on High End SAP HANA IT landscapes