AWS EC2 Unreachable instance after Resize

Question

I have 2 r3.xlarge AWS EC2 instances that are convertible to r4.xlarge. They are both running Exchange 2016 on 2012R2. I have tried two methods so far:

Changed instance type and booted up
Created AMI and Launched a new instance with it

In both cases, the servers became unreachable and passed only 1\2 checks. I've attached the Elastic IP to both with no results.

Am I missing something here? Does something need to happen to these instances specifically because they're running Exchange?

what does access/event logs say when retrieved from web console? — Shailesh Sutar, Feb 08 '18 at 16:36
You mentioned that they are r3.xlarge. Was that before or after? What was the other instance type? — Michael - sqlbot, Feb 08 '18 at 23:20

score 2 · Answer 1 · answered Feb 12 '18 at 14:28

2

In order to upgrade from r3.xlarge to r4.xlarge, you will have to install the new ENA and PV drivers from Amazon.

https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/enhanced-networking-ena.html

answered Feb 12 '18 at 14:28

Nico J

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AWS EC2 Unreachable instance after Resize

1 Answers1