We have an AEM instance in AWS on EC2 with the datastore on S3 as specified in the white paper. We want to simplify our DR strategy by leveraging the relatively recent feature of AWS S3 multi-region access point to access the datastore. Among other things, this would enable an automatic recovery of the application in case of a failure of the S3 service. However, 2 critical questions remain:
Thank you in advance for your support,
regarding the question of "is this supported?" I would reach out to Adobe support.
In terms of general feasibility: It seems that your DR strategy relies on re-building the AEM instance(s) in a different region but re-using the same (original) S3 bucket via S3 multi-region access. This should work, and also from an AEM perspective it should be seamless (maybe higher latencies), assuming the existing S3 driver (shipped with AEM) supports that feature. And that's a question only the Adobe support can answer.