amazon web services - AWS: Multiple EC2 Instance and single RDS Instance -


how manage aws multiple instances... , use of different options available while enter "aws console"... like: east (n. virginia), west (oregon) , west (n. california) etc...

what understood is, can created multiple instances same configuration (deploy same web pages, services on instances - right?) , single rds instance... these ec2 instance point single rds instance - right? (not sure here...)

as result have 3 ec2 instances

  1. instance_1: east (n. virginia)
  2. instance_2: west (oregon) and
  3. instance_3: west (n. california)

all above instances point single "rds instance" - right? , in dns resolving list add name record pointing different ip address (single dns above 3 instance ip address)

just want know correct understanding? key benefit of aws services - or suggestion appreciated.

thank you.

having 3 web server - instance in 3 different regions , 3 connected single rds instance having web server , rds instance in same region i.e. east (n.virginia) start obvious reasons of latency.

i suggest start selection of region, launch web server , rds instance in same region , az. later on step concentrate on ha rds ( multi-az ).

based on question, think need understanding of regions.

region : regions geographical locations amazon data center located. every region have option run services ec2, s3, rds, vpc etc. independently.

az - availability zone : azs more sub data centers - inside each region has independent - power, cooling , network. every region has different number of azs example : east - virginia has 5 west - n. california has 3 etc.

ps : question isn't clear , broad; answer generic.


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