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c7a is not available in Zone B only for us-west-2

0

I am not sure but would like to know how likely this is temporary or essentially just pick another zone? I guess even it is temporary the supply seems tight to use Zone b in production, although most of our servers live in Zone B.

I were running Packer and here is the error message:

Error launching source instance: Unsupported: Your requested instance type (c7a.xlarge) is not supported in your requested Availability Zone (us-west-2b). Please retry your request by not specifying an Availability Zone or choosing us-west-2a, us-west-2c, us-west-2d.
  status code: 400, request id: 24bfa2d4-f66b-42f9-972c-2c531a8724ea
Error launching source instance: Unsupported: Your requested instance type (c7a.xlarge) is not supported in your requested Availability Zone (us-west-2b). Please retry your request by not specifying an Availability Zone or choosing us-west-2a, us-west-2c, us-west-2d.
  status code: 400, request id: 24bfa2d4-f66b-42f9-972c-2c531a8724ea
Topics
Compute
Tags
Compute
Language
English
asked 2 years ago542 views
1 Answer
0

Hello.

I haven't seen the error message, so I don't know the details, but if you suspect a lack of capacity on the AWS side, try restarting after a while or selecting a different availability zone as described in the document below.
https://repost.aws/knowledge-center/ec2-insufficient-capacity-errors

EXPERT
answered 2 years ago
  • Tom Lo
    2 years ago

    Thank you for answering and I have added the error message.

  • Riku_Kobayashi EXPERT
    2 years ago

    I checked with the command below, and it appears that "us-west-2b" is supported. Just to be sure, please check if the same result occurs with your AWS account. https://repost.aws/knowledge-center/ec2-instance-type-not-supported-az-error

    aws ec2 describe-instance-type-offerings --location-type availability-zone  --filters Name=instance-type,Values=c7a.xlarge --region us-west-2 --output table
-------------------------------------------------------
|            DescribeInstanceTypeOfferings            |
+-----------------------------------------------------+
||               InstanceTypeOfferings               ||
|+--------------+--------------+---------------------+|
|| InstanceType |  Location    |    LocationType     ||
|+--------------+--------------+---------------------+|
||  c7a.xlarge  |  us-west-2d  |  availability-zone  ||
||  c7a.xlarge  |  us-west-2c  |  availability-zone  ||
||  c7a.xlarge  |  us-west-2b  |  availability-zone  ||
|+--------------+--------------+---------------------+|

    If you get the same result, please open a case with AWS Support under "Account and billing". There may be a possibility of a bug. Inquiries under "Account and billing" can be made free of charge. https://docs.aws.amazon.com/awssupport/latest/user/case-management.html

  • Tom Lo
    2 years ago

    I ran your command and I got consistent result which us-west-2b was not listed. Anyway thank you for helping.

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