I'm trying to create a multi-attach io1 volume in eu-west-3, unfortunately that fails.

$ aws ec2 create-volume --volume-type io1  --size 100 --iops 300 \
  --availability-zone eu-west-3a --region eu-west-3 --multi-attach-enabled

An error occurred (InvalidParameterCombination) when calling the CreateVolume operation: The parameter multi-attach-enabled is not supported for io1 volumes.

$ aws --version
> aws-cli/1.20.60 Python/3.6.9 Linux/4.4.0-19041-Microsoft botocore/1.21.60

However, in the docs it is stated that volume type io1 does support multi-attach: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-volume-types.html

Is this problem specific to the region / availability zone?

I tried it in us-east-1 and it works.

CodePudding user response：

Multi-Attach for io1 volumes is only supported in limited regions and eu-west-3 is not among them:

Considerations and limitations

[...]

• Multi-Attach for io1 volumes is available in the following Regions only: us-east-1, us-west-2, eu-west-1, and ap-northeast-2.

— docs