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AWS EC2 ENA Support

May 7, 2021

AWS has machine types that require ENA Support. You can run AWS CLI to find out if instance is ENA enabled.

aws ec2 describe-instances \
--instance-id i-xxxxxxxxxxxxxxxxx \
--profile default \
--region us-east-1 \
--query 'Reservations[].Instances[].EnaSupport'

aws ec2 describe-instances \ --instance-id i-xxxxxxxxxxxxxxxxx \ --profile default \ --region us-east-1 \ --query 'Reservations[].Instances[].EnaSupport'

Login to the instance and verify.

sudo lspci | grep -i Amazon

sudo lspci | grep -i Amazon

List driver details.

modinfo nvme

modinfo nvme

Verify modules loaded at startup.

lsmod | grep nvme
lsmod | grep ena

lsmod | grep nvme lsmod | grep ena

If ENA drivers are missing, install them.

yum install pciutils

yum install pciutils

Filed Under: Cloud Tagged With: aws, cli, describe-instances, ec2, ena, support

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