Can anyone please share how to check the AWS extended support cost details for the RDS instances. Currently the RDS is having engine Aurora sql and the while using AWS Price Calculator what should i select in configuration part. And after that how should I get the pricing for the updated version of RDS .

Thanks in advance :)

Can someone shed some light on how RDS pricing works?

There seems to be 3 components here - the instance, storage and iops. Instance and storage are fixed and you can calculate for a month.

But what about iops? IIUC I'll be charged every time I read/write to the tables with increased cost if I hit a spike in traffic or run some queries on very big tables?

https://aws.amazon.com/ebs/pricing/

This link says gp3 has 3000 iops free. How do I estimate my iops?

Then there seems to be a separate charge for throughput? 125MB/s and then an additional charge per MB/s-month. Not sure how to calculate this. What happens if I had a sudden spike where I went to 500 MB/s for an hour. How would that get converted to MB/s-month.

All this seems like a recipe to get hit by an unexpected large bill. Would it be better to go with a managed db on lightsail which has a fixed monthly cost?

Thanks.