# Failure management
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**Topics**
+ [REL 9. How do you back up data?](rel-09.md)
+ [REL 10. How do you use fault isolation to protect your workload?](rel-10.md)
+ [REL 11. How do you design your workload to withstand component failures?](rel-11.md)
+ [REL 12. How do you test reliability?](rel-12.md)
+ [REL 13. How do you plan for disaster recovery (DR)?](rel-13.md)