High Availability Solutions 
This section describes high-availability solutions that have been developed to improve availability for the hardware and system software that support the SAP system in high-availability environments. With the high-availability switchover mechanism, services can be automatically switched from a failed host to a standby host in the event of failure, allowing continuation of SAP system operation. This section focuses on the high-availability technology that is available for the SAP services to provide resilience in the event of host machine failure.
Implementation Considerations
High-availability solutions are inherently complex. Therefore, for detailed technical guidance when implementing a specific product or feature, be sure to contact your SAP consultant, hardware vendor, and so on.
Integration
High availability solutions for the SAP system should be part of a system-wide strategy. Therefore, you should also consider all components of the system, including the SAP system itself, the database, the network, and so on.
Features
Here we discuss general aspects of high-availability solutions in relation to SAP systems. For more information about the use of high-availability solutions for the SAP system, see the SAP NetWeaver installation guides, which you can find at:
