1. What is HANA replication? 2. What is fencing? 3. What is near zero downtime technique, how to plan? 4. Migration process? 5. What are sum tool phases and role of standard configuration, High level configurations? 6.How to minimize downtime? 7. Files created during export /import 8.what data stored in these tables?

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Accepted Answer

Technical Specialist interview questions on HANA replication, fencing, migration, minimizing downtime, and export/import files.

HANA replication is the process of copying data from one HANA system to another.
Fencing is a mechanism to prevent split-brain scenarios in a high-availability setup.
Near zero downtime technique involves careful planning and execution to minimize downtime during system upgrades or migrations.
Migration process involves moving data from one system to another, typically with the help of tools like SAP SUM.
SUM tool phases include preparation, downtime, and post-processing, with standard and high-level configurations playing different roles.
To minimize downtime, techniques like parallel processing, data compression, and delta migration can be used.
Export/import files are created during data migration and contain information about the data being moved.
The tables in these files store data related to system configuration, user information, and application data.

Accepted Answer

SAP HANA system replication is used to address SAP HANA outage reduction due to planned maintenance, fault, and disasters
Fencing is a sport in which two competitors fight each other using very thin swords
Near Zero Downtime (NZDT) represents a methodology to reduce downtime during a data or system transformation
movement from one country, place or locality to another in search of better opportunities to settle.

The Software Update Manager (SUM) is a multi-purpose tool that supports various processes, such as performing a release upgrade, installing enhancement packages, applying Support Package Stacks, installing add-ons, or updating single components on SAP NetWeaver.

6 Here are some steps you can take to keep downtime to a minimum.

Plan for Recovery. The best way to ensure a fast recovery is to plan ahead. ...
Keep Everything Up to Date. ...
Educate Your Workforce. ...
Install a Backup Power System. ...
Test Your Infrastructure. ...
Consider Disaster Recovery as a Service. ...
Conclusion.
with Export, you can transfer data to a file, with Import you can bring data into a file you are editing
Near Zero Downtime (NZDT) represents a methodology to reduce downtime during a data or system transformation

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