Following points can be considered while creating a highly available architecture depending on scenarios A spread Placement group Supports a maximum of seven running Instances per availability zone.for example, In A region with three Availability zones, you can run total of 21 instances in the group.If you try to start an eighth Instance in the same availability zone and in the same spread placement group, the Instance will not launch.If you need to have more than seven instances in an availability zone,Then the Recommendation is to use multiple spread Placement Groups. Using multiple spread Placement Groups does not provide guarantee about the spread of instance between groups, but it does ensure the spread for each group, thus limiting impact from certain classes of failures. Durability refers to the ongoing existence of the object or resource. Note that it does not mean you can access it, only that it continues to exist. Groups, Scaling options, configuration templates are comp...
Storage patterns available with lambda Ephemeral Storage Patterns Persistent Storage Patterns Lambda is stateless Functions are stateless, meaning that you can’t permanently store any data in the function(Example, session data, customer data, etc). Lambda is Ephemeral Not used for applications that need to run for longer than 15 minutes(Example, a database application or a web server That needs to stay up and running). Persisting data To persist data, The function must interact with a data store(Example save it to S3, EFS, Or Dynamo DB).
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