How can I achieve DR or protection against AWS outages?

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How can I achieve DR or protection against AWS outages?
January 14, 2022 at 3:08 pm Reply

Nir Rozenberg

How can I achieve DR or protection against AWS outages?

This discussion contains 4 replies and has 82 views.
Replies
February 5, 2022 at 6:38 am Reply

Ofir Nachmani

Refer to Zev’s Blog for DR protection at http://phpstack-1446756-5421145.cloudwaysapps.com/how-to-prepare-for-protect-against-damage-from-aws-cloud-outages/

Newvem offers one of the best solutions in the market to identify:

Which ELBs are not configured properly
How to better configure ELBs across availability zones
Which instances behind ELB are not healthy and require attention
Which EBS volumes are not backed up
Which EBS snapshots are stale and need to be refreshed

Configure your resources properly and achieve HA.
March 15, 2022 at 6:18 am Reply

Taral Shah

AWS has a concept called ‘Regions and Zones’. Refer to AWS Global Infrastructure at http://aws.amazon.com/about-aws/globalinfrastructure/

AWS offers a highly scalable and elastic infrastructure with ‘Regions and Zones’.

Each region is a separate data center spread across the geography while zones are physically or logically separate data centers with in Regions. If one zone goes down in a region the other zone may always be available and serve the user’s requests. In the rare chance that a whole region goes down, configure your application so it is served from another region.

Zones and regions can therefore help users achieve HA as well as protect against DR.
March 15, 2022 at 6:27 am Reply

Taral Shah

AWS also offers Elastic Load Balancing and Auto Scaling. An Elastic Load Balancer is used to distribute loads across a zone in same region. The user can configure the ELB to serve multiple zones in same region. If one of the zones is down and the ELB can not send a request to the instance in that zone, it will automatically redirect the request to another zone thus providing DR against zone failure.

The Auto Scaling is used to add new resources based on specific conditions. The user can configure AutoScaling with ELB and fix the number of instances. If one of the instances is not reachable, AutoScaling will add a new instance automatically to maintain the total count of resources.

 

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