# Failure management
<a name="failure-management"></a>


| DRHCREL05: How do you manage and recover from failure to maintain reliable data access and processing across on-premises, edge, and cloud environments? | 
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 Running workloads are subject to disruptions for a number of reasons. Therefore, you must take steps to implement resiliency if you need your workload to be reliable while also meeting your data residency requirements. 


| DRHCREL06: Is your application resilient to on-premises maintenance activities? | 
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 Under the [shared responsibility model](https://aws.amazon.com/compliance/shared-responsibility-model/), AWS is responsible for the hardware and software that run AWS services. This applies to AWS Outposts, just as it does to an AWS Region. AWS monitors the performance, health, and metrics for your Outposts rack and determines whether any maintenance is required. If AWS detects an irreparable issue with hardware during the server provisioning process or while hosting Amazon EC2 instances running on your Outposts server, we will notify the Outpost owner and the owner of the instances that the affected instances are scheduled for retirement. For high availability, your workloads must be resilient during maintenance activities while also preserving data residency requirements. 

**Topics**
+ [DRHCREL05-BP01 Provision spare compute capacity following an N\+M model](drhcrel05-bp01.md)
+ [DRHCREL05-BP02 To mitigate the impact of Availability Zone or Region failures, deploy multiple Outposts anchored to different Availability Zones or Regions](drhcrel05-bp02.md)
+ [DRHCREL05-BP03 Maintain high availability during on-premises maintenance activities](drhcrel05-bp03.md)
+ [DRHCREL05-BP04 Design your environment to maintain availability and recover in case of failure in a critical sub-system like networking, server, rack, or within the application itself](drhcrel05-bp04.md)
+ [DRHCREL06-BP01 Use AWS Health to receive EC2 instance retirement notifications and scheduled events on Outposts that may require instance failover ahead of time](drhcrel06-bp01.md)