AWS RDS host instance creation fails: "hardware error"

Question

I'm trying to create a MySQL RDS host instance on AWS (via Ansible) and getting the following error:

The database instance has been put into STORAGE_FAILURE due to a hardware failure 

It happens after about 2 hours of saying it's in a "Creating" state. It fails whether or not we specify multi-AZ.

Other specs:

• Type: db.t2.large
• MySQL version: 5.6.27
• Encrypted: yes
• Tenancy: dedicated
• Storage: 100 GB

Anyone else seen this?

Answer 1

Looks like the problem was that for dedicated tenancy, the RDS instance class has to correspond to the EC2 instance class, e.g. m3.medium EC2 corresponds to db.m3.medium. I was using m3.medium with db.t2.large.

Makes sense, but it's kinda buried in the docs.